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Have you ever wondered if trees talk to each other? Happily, many scientists across time have had the same thought. So much fascinating knowledge has arisen from their research about the intricacies of trees and the different ways they converse with one another. Chatter Silent Conversations: How Trees Talk to One Another By Lily McCann There are so many conversations that go on beyond our hearing. This column explores communication between trees and how it might change the way we perceive them. Edited by Ethan Newnham, Irene Lee & Niesha Baker Issue 1: September 24, 2021 Illustration by Rachel Ko It’s getting brighter. A long, long winter is receding and warm days are flooding in. I’m not one for sunbathing, but I love to lie in the backyard in the shade of the gums and gaze up into the branches. They seem to revel in the weather as much as I do, waving arms languidly in the light or holding still as if afraid to lose a single ray of sun. If there’s a breeze, you might just be able to hear them whispering to one another. There’s a whole family of these gums in my backyard and each one is different. I can picture them as distinctly as the faces of people I love. One wears a thick, red coat of shaggy bark; another has pale, smooth skin; a third sheds its outer layer in long, stringy filaments that droop like scarves from its limbs. These different forms express distinct personalities. Gum trees make you feel there is more to them than just wood and leaves. There’s a red gum in Central Victoria called the ‘Maternity Tree’. It’s incredible to look at. The huge trunk is hollowed out and forms a sort of alcove or belly, open to the sky. Generations of Dja Dja Wurrung women have sought shelter here when in labour. An arson attack recently blackened the trunk and lower branches, but the tree survived (1). Such trees have incredibly long, rich lives. Imagine all the things they would say, if they could only tell us their stories. Whilst the ‘whispering’ of foliage in the wind may not have significance beyond its symbolism, there are other kinds of communication trees can harness. All we see when a breeze blows are branches and leaves swaying before it, but all the time a plethora of tiny molecules are pouring out from trees into the air. These compounds act like tiny, encrypted messages riding the wind, to be decoded by neighbours. They can carry warnings about unwanted visitors, or even coordinate group projects like flowering, so that trees can bloom in synchrony. If we turn our gaze lower we can see that more dialogue spreads below ground. Trees have their own telephone cable system (7), linking up members of the same and even different species. This system takes the form of fungal networks, which transfer nutrients and signals between trees (3). Unfortunately, subscription to this network isn’t free: fungi demand a sugar supply for their services. Overall, though, the relationship is beneficial to both parties and allows for an effective form of underground communication in forests. These conversations are not restricted to deep-rooted, leaf-bearing beings: trees are multilingual. A whole web of inter-species dialogue murmurs amongst the branches beyond the grasp of our deaf ears. Through the language of scent, trees entice pollinators such as bees and birds to feed on their nectar and spread their pollen (4). They warn predators against attacking by releasing certain chemicals (5). They can even manipulate other species for their own defence: when attacked by wax scale insects, a Persimmon tree calls up its own personal army by alerting ladybugs, who feed on the scales, averting the threat to the tree (6). Such relationships demonstrate the crucial role trees play in local ecosystems and their essentially cooperative natures. Trees can be very altruistic, especially when it comes to family members. Mother trees foster the growth of young ones by providing nutrients, and descendants support their elderly relatives - even corpses of hewn-down trees - through their underground cable systems. These intimate, extensive connections between trees are not so different from our own societal networks. Do trees, too, have communities, family loyalties, friends? Can they express the qualities of love and trust required, in the human world, for such relationships? This thought begs the question: Can trees feel? They certainly have an emotional impact on us. I can sense it as I lie under the gums. Think about the last time you went hiking, sat in a tree’s shade, walked through a local park. There’s something about being amongst trees that calms and inspires. Science agrees: one study has shown that walking in forests is more beneficial to our health than walking through the city. How do trees manage to have such a strong effect on us? Peter Wohlleben, German forester and author of The Hidden Life of Trees, suggests that happy trees may impart their mood to us (9). He compares the atmosphere around ‘unhappy’ trees in plantations where threats abound and stress signals fill the air to old forests where ecosystem relations are more stabilised and trees healthier. We feel more relaxed and content in these latter environments. The emotive capacity of trees is yet to be proven scientifically, but is it a reasonable claim? If we define happiness as the circulation of ‘good’ molecules such as growth hormones and sugars, and the absence of ‘bad’ ones like distress signals, then we may suggest that for trees an abundance of good cues and a lack of warnings could be associated with a positive state. And this positive state - allowing trees to fulfill day-to-day functions, grow and proliferate, live in harmony with their environment - could be termed a kind of happiness in its own right. This may seem like a stretch - after all, how can you feel happiness without a brain? But Baluska et al. suggest that trees have those too, or something like them: command centres, integrative hubs in roots functioning somewhat like our own brains (10). Others compare a tree to an axon, a single nerve, conducting electrical signals along its length (11). Perhaps we could say that a forest, the aggregate of all these nerve connections, is a brain. Whilst we can draw endless analogies between the two, trees and animals parted ways 1.5 billion years ago in their evolutionary paths (12). Each developed their own ways of listening and responding to their environments. Who’s to say whether they haven’t both developed their own kinds of consciousness? If we take the time to contemplate trees, we can see that they are infinitely more complex and sensitive than we could have imagined. They have their own modes of communicating with and reacting to their environment. The fact is, trees are storytellers. They send out a constant flow of information into the air, the soil, and the root and fungal systems that join them to their community. Even if we can’t converse with trees in the same way that we converse with each other, it’s worth listening in on their chatter. They could tell us about changes in climate, threats to their environment, and how we can best help these graceful beings and the world around them. References: 1. Schubert, Shannon. “700yo Aboriginal Maternity Tree Set Alight in Victoria.” www.abc.net.au , August 8, 2021. https://www.abc.net.au/news/2021-08-08/dja-dja-wurrung-birthing-tree-set-on-fire/100359690. 2. Pichersky, Eran, and Jonathan Gershenzon. “The Formation and Function of Plant Volatiles: Perfumes for Pollinator Attraction and Defense.” Current Opinion in Plant Biology 5, no. 3 (June 2002): 237–43. https://doi.org/10.1016/s1369-5266(02)00251-0.; Falik, Omer, Ishay Hoffmann, and Ariel Novoplansky. “Say It with Flowers.” Plant Signaling & Behavior 9, no. 4 (March 5, 2014): e28258. https://doi.org/10.4161/psb.28258. 3. Simard, Suzanne W., David A. Perry, Melanie D. Jones, David D. Myrold, Daniel M. Durall, and Randy Molina. “Net Transfer of Carbon between Ectomycorrhizal Tree Species in the Field.” Nature 388, no. 6642 (August 1997): 579–82. https://doi.org/10.1038/41557. 4. Buchmann, Stephen L, and Gary Paul Nabhan. The Forgotten Pollinators. Editorial: Washington, D.C.: Island Press/Shearwater Books, 1997. 5. De Moraes, Consuelo M., Mark C. Mescher, and James H. Tumlinson. “Caterpillar-Induced Nocturnal Plant Volatiles Repel Conspecific Females.” Nature 410, no. 6828 (March 2001): 577–80. https://doi.org/10.1038/35069058. 6. Zhang, Yanfeng, Yingping Xie, Jiaoliang Xue, Guoliang Peng, and Xu Wang. “Effect of Volatile Emissions, Especially -Pinene, from Persimmon Trees Infested by Japanese Wax Scales or Treated with Methyl Jasmonate on Recruitment of Ladybeetle Predators.” Environmental Entomology 38, no. 5 (October 1, 2009): 1439–45. https://doi.org/10.1603/022.038.0512. 7, 9. Wohlleben, Peter, Jane Billinghurst, Tim F Flannery, Suzanne W Simard, and David Suzuki Institute. The Hidden Life of Trees : The Illustrated Edition. Vancouver ; Berkeley: David Suzuki Institute, 2018. 10. Baluška, František, Stefano Mancuso, Dieter Volkmann, and Peter Barlow. “The ‘Root-Brain’ Hypothesis of Charles and Francis Darwin.” Plant Signaling & Behavior 4, no. 12 (December 2009): 1121–27. https://doi.org/10.4161/psb.4.12.10574. 11. Hedrich, Rainer, Vicenta Salvador-Recatalà, and Ingo Dreyer. “Electrical Wiring and Long-Distance Plant Communication.” Trends in Plant Science 21, no. 5 (May 2016): 376–87. https://doi.org/10.1016/j.tplants.2016.01.016. 12. Wang, Daniel Y.-C., Sudhir Kumar, and S. Blair Hedges. “Divergence Time Estimates for the Early History of Animal Phyla and the Origin of Plants, Animals and Fungi.” Proceedings of the Royal Society of London. Series B: Biological Sciences 266, no. 1415 (January 22, 1999): 163–71. https://doi.org/10.1098/rspb.1999.0617.

< Back to Issue 7 Peaks and Perspectives: A Word from the Editors-in-Chief by the Editors-in-Chief 22 October 2024 illustrated by Ingrid Sefton In geometry, an apex may refer to the highest point of a solid figure, such as a pyramid. Move to the fields of ecology and evolution, and we find apex predators, overseeing population dynamics atop of the food chain. We too find ourselves situated at an apex position in society – observing, experimenting with, and utilising the world at our feet for scientific innovation and headway. Common amongst these apexes in science is unsurprisingly the emphasis on reaching soaring heights and breathtaking summits. We strive to reach these peaks, endpoints that are perceived to signal scientific greatness and knowledge. We create, we innovate, we explore – all with this vision in mind. Yet, this is not, or rather, should not be the “why” for scientific endeavour. Implicit in reaching the highest point of something is the notion that there is no further to climb. That upon reaching an apex, all that remains is to precariously balance upon this peak and hope not to misstep, tumbling down from great heights. Scientific curiosity and a yearning to understand the science underpinning our existence is not about reaching the envisioned apex. It is instead defined by the steps climbed by us and our predecessors in our journey towards discovery, and in turn, the steps that remain untrod and paths that remain uncharted. The routes we are yet to take will be forever changing. Piloted by the evolving foci of our society, where and how we may next seek to innovate remains undetermined. Infinite possibilities abound. With a birds-eye view, Apex visualises the new levels of human-tech connectivity, ills of antimicrobial resistance, and the fringes of outer space that loom on the horizon; with it, encouraging readers to envisage where the next steps may lie. Yet alongside these perspectives of the expansive, limitless world, Apex invites reflection and hypotheticals. Taking time to pause from the unfaltering upward march of innovation, this issue embraces the breathtaking view of where we are now. Apex guides us to consider time-old traditions and technicalities from a new perspective, celebrating those who have paved the way to the peaks of modern science. Wandering within, across and between disciplines of Science, it is these ruminations along the way that enrich the journey. After all, what is scientific advancement without knowing what we do not know? In the words of Sir Isaac Newton, it is by standing on the shoulders of giants that we hope to see further. So come along, and revel in the expansive view. Let the heights of scientific innovation inspire you, but don’t let such peaks constrain you. Previous article Next article apex back to

< Back to Issue 2 Discovery, Blue Skies... and Partisan Bickering? Is the era of bipartisan science dead? Do we discover for discovery’s sake? And what happens when optimistic scientific vision meets cold political reality? Journeying from Cambridge, Massachusetts to Melbourne, Australia and tackling everything from deadlocked appropriations bills and economic mandates to the scientist-politician and the prospect of discovery, this feature tries to shine a light on all those questions, as it ponders what it really means to do science in the age of politics. by Andrew Lim 10 December 2021 Edited by Ethan Newnham & Sam Williams Illustrated by Friday Kennedy The chalk dust hangs in the air. Blackboards scrawled with inheritance trees, genetic disease rates and historical minutiae about a long-deceased Oxford don … they all stand still for a moment. As he walks out, the freshman class surrounds the professor (a man once unironically described as “the rock star of biology”), pestering him with incessant questions. Ambling into the sunny fall day, they are joined by more and more – he cracks a joke about being a “photos kind of guy” and lets them take the obligatory selfie. Image 1: Dr Eric Lander teaching freshman biology at MIT in 2012. Looking at the scene, it’s hard to believe that we find here a future member of the Cabinet of the United States. Surely such individuals come from the corridors of Congress or the halls of big business, not this leafy, academic and somewhat-secluded corner of Cambridge, Massachusetts, between an apple tree descended from Isaac Newton’s in the garden and a prototype solar car down the hall. And almost certainly this man, who once steeled himself for a “rather monastic” pure mathematics career and whose main claim to fame was in mapping out the human genome, cannot be the one who someday will be asked to bridge science and politics in what appears an ever more divided union. But he is. In 2021, this very professor, Dr Eric Lander, will be sworn in as Director of the Office of Science and Technology Policy (OSTP), charged by President Joe Biden with maintaining “the long-term health of science and technology” and “guarantee[ing] that [their] fruits … are fully shared”. The mandate belies a time where science increasingly seems to live in the world of partisan political bickering. And so, in an exciting new series of features beginning with this very article, we at OmniSci Magazine are sitting down with those shaping the colliding worlds of science and public service across Australia and around the globe to ask: In a time when Dr Lander’s appointment is heralded by the White House slogan “Science is Back” and Australia sees thirteen Science Ministers in ten years, can science still straddle the political divide, or is the era of bipartisan science dead? What does it mean to discuss national science in an era of international research? And how should scientists and policymakers alike navigate this brave new political world? If not very scientific, it perhaps befits the political side of this feature to begin with the apocryphal. It has been said that The Right Honourable William Ewart Gladstone, the famed four-term 19th-century Liberal Prime Minister of the United Kingdom, was once attending a demonstration by the physicist Michael Faraday, who had just made his first forays into electricity. After the show, Gladstone went to the back of the room to have a word with the inventor: “It’s all very curious, Mr Faraday,” he murmured, “but does it have any practical use?”. The scientist did not miss a beat: “Well, sir,” he responded, “I suspect one day you shall tax it!” Image 2: President John F Kennedy speaking at Rice University in Houston, Texas in September 1962 It’s an old joke that, to many, sums up the cold-hearted and transactional relationship between science and politics. But those of a more optimistic bent would disagree. They would point to the golden age of space exploration, when, over half a century ago, on a sunny September Houston morning, President John F Kennedy famously declared that the United States would “go to the Moon in this decade”. That day, he offered a vision for his country to “set sail on this new sea because there is new knowledge to be gained”, promising an open mandate to learn more about the universe around us, with no reason beyond the sheer wonder of exploration. It was a promise to a nation – one that appeared to transcend party politics. Indeed, it was ironically under the presidency of Richard M Nixon, the man whose campaign had accused Kennedy in 1960 of mass electoral fraud, that Apollo 11 landed on the moon, with Nixon transformed into the man who promised to “not drift, nor lie at anchor…with man's epic voyage into space”. But if overflowing bipartisan support for research as a sheer quest for knowledge was once the case, it certainly seems at odds with political reality today. Both sides of the political aisle seem deeply concerned with the economics of science rather than the prospect of discovery. In Australia, upon the appointment of The Honourable Richard Marles MP as Shadow Minister for Science, Opposition Leader the Honourable Anthony Albanese MP described him as “shadow minister for jobs, jobs and more jobs”. The Shadow Minister himself then highlighted science and technology as key to “micro-economic reform” for Australia. Mere months later, upon The Honourable Melissa Price MP’s appointment as Minister for Science, Prime Minister the Honourable Scott Morrison MP spoke of her portfolio encompassing science and technology “right across the economy, both in civil and defence uses”. To many, this speaks to a wider concern – the neglect of esoteric “blue skies” research (pursuing discovery for discovery’s sake) in favour of scientific research with immediate short-term economic impact. you never quite know what a scientific discovery will lead to or when it’ll be useful (or indeed, vital!) for society. I don’t think our State or Federal Governments are doing enough to fund this kind of science and research, in everything from medical research to physics to studying our threatened species. It needs to be valued a lot more.” Representatives from the Victorian branches of the Australian Labor Party and the Liberal Party of Australia did not respond to our request for comment. It's a trend that Ellen Sandell MP, Deputy Leader of the Victorian Greens, has watched with growing concern. In an exclusive email interview with OmniSci Magazine, she expressed her dismay at the state of “blue skies” science: “Basic research - or the study of science to better understand our world, even if we don’t know where it will lead - is incredibly important. I think the pandemic has shown us just how valuable our scientists are, and Image 3: Ellen Sandell MP on the floor of Victorian Parliament. Image 4: Dr Amanda Caples, Lead Scientist of Victoria However, Lead Scientist of Victoria Dr Amanda Caples, one of the key figures in the Victorian Government’s engagement with research, rejects Sandell’s contention. In her discussion with us, Dr Caples spoke of “an ‘and’ conversation rather than choosing one form of research over another…[a discussion about] hav[ing] a good mix of pure and applied research”. She went on: “most pure research has a purpose or use-case in mind – it’s just not typically driven by commercial interests and the applications are not always evident at the outset. The policy outcome that the Victorian Government is seeking to achieve is to mobilise research knowledge to make it available for use in the economy and community more broadly… Applying the brains of the research community to the problems of industry – and I suggest also of government – is not a novel concept. It is the approach of successful innovation clusters from Cambridge UK to Boston and to Israel. It underpins future industries and high-value jobs, attracts talent and supports service industries. We can do it here in Melbourne too!”. Nonetheless, with all these swirling worries, it’s no surprise that the days of blue-skies research investment seem an enchanting vision – the best that humanity can be, boldly seeking out new frontiers of understanding and knowledge. Yet if exciting, perhaps it is but a mirage. A mere two months after the rhetorical highs of his Houston address, in a White House Cabinet Room meeting not declassified until some 40 years later, Kennedy confided in NASA Administrator James E Webb that if he couldn’t find a practical, political use for the research, “we shouldn't be spending this kind of money, because I'm not that interested in space”. A year after that, as poll numbers and public support for his scientific venture started to wane, Kennedy’s language became sharper. He bluntly told Webb that “we’ve got to wrap around in this country, a military use for what we’re doing and spending in space.” Even in this, space research’s golden age, amidst his lofty rhetoric of human adventure, Kennedy had his eye on the polls, the politicians and the price tags. Image 5: President Biden announcing his plans to form ARPA-H, flanked by Vice President Kamala Harris and Speaker Nancy Pelosi. President Biden and Dr Lander appear to be thinking similarly – at least in terms of searching for a large-scale, popular science mandate that the public will buy into. In the wake of a pandemic, their area of concern seems almost too obvious: health. In his April address to a Joint Session of Congress, President Biden announced his plan to develop an “Advanced Research Projects Agency for Health [ARPA-H]…to develop breakthroughs to prevent, detect, and treat diseases like Alzheimer’s, diabetes, and cancer.” Invoking his son Beau, who died of brain cancer in 2015, he announced increased funding to “end cancer as we know it”, declaring that there was “no more worthy investment…nothing that is more bipartisan…[and] it’s within our power to do it”. A cure for cancer. A man on the moon. Striking, almost visceral promises designed to address the worries of their generation: from national defence in the Cold War to public health amidst a pandemic. It’s something that both Sandell and Caples seem focussed on too. Sandell believes that a continued and increasing emphasis on health research is the way forward for Victoria: “Melbourne is a centre for excellence when it comes to medical research, so the state government has a role in supporting and encouraging this to ensure we maintain that position.” Likewise, Caples thrusts mRNA research into focus, listing one of her key priorities as “driv[ing the] development of frontier technologies such as quantum computing and mRNA.” But to her, the story is not just about the lessons from the pandemic itself, but also about how we rebuild. As she told us, “Nations around the world are investing in science, technology and innovation as they rebuild economies impacted by the coronavirus pandemic. This is because global policymakers understand that a high performing science and research system benefits the broader economy.” This narrative of science as the springboard out of COVID echoes a letter President Biden wrote to Dr Lander upon his appointment, describing science’s power to forge “a new path in the years ahead – a path of dignity and respect, of prosperity and security, of progress and common purpose”. Yet, especially for our stateside counterparts, lofty rhetoric seems no guarantee of avoiding an ugly partisan fight. Just a few years after a Trump White House considered science agency cuts en masse, the issue of funding is back on the congressional table. And it’s not all going well. In the USA, almost all budget laws for federal government agencies, departments and programs begin life as appropriations bills – bills that determine how much money is to be allocated (or “appropriated”) to parts of the government. However, this year, an ongoing Senate deadlock has seen Congress unable to pass any appropriations bills whatsoever. To avert a government shutdown (where no agencies have any money and no federal programs can operate), a stopgap continuing resolution has been implemented, temporarily freezing spending at previous levels, allowing the government to keep operating. On October 18, Senator Patrick Leahy (D-VT), Chair of the Senate Appropriations Committee, announced nine appropriations bills to break the logjam and fund the government (including crucial research agencies) through the 2022 fiscal year. Given the political situation, the bills have been riddled with earmarks – unrelated “pork barrel” projects designed to win over wavering votes (the most famous example of this being a $400 million “Bridge to Nowhere” in Alaska, funded inside a 2005 housing, transport and urban development bill). In just one case of this, $64 million has been carved out of the National Oceanographic and Atmospheric Administration (NOAA) for additional “special projects”. Yet despite these concessions, the bills look to be dragged through a long political battle. In a statement released as Leahy announced his plans, Senator Richard Shelby (R-AL), Vice Chair of the Committee, lambasted them as “partisan spending bills…[and] a significant step in the wrong direction”, vowing to oppose them. On 3rd December 2021, a week before this article’s publication, Congress passed another stopgap continuing resolution following a night of political brinksmanship that brought the government within hours of being defunded and shut down. Regardless, at the time of writing, all appropriations bills remain unpassed and the battle rages on into 2022. It’s a confrontational attitude – and one that seems to not be going anywhere anytime soon. After all, closer to home, we’ve seen university education funding become a political football, with Shadow Education Minister the Honourable Tanya Plibersek MP promising a Labor Party election platform predicated on undoing what she characterises as Morrison government “economic vandalism”. But it’s not all bad news. In her responses, Sandell describes herself as “worried about the hyper-partisan nature of politics at the moment but…buoyed by how science and evidence has been at the heart of our response to the pandemic in Australia, at least here in Victoria.” She sees the issue of a partisan approach to scientific advice as stemming from a greater problem: the non-existence of the scientist-politician. In her words, “When I entered State politics, I was shocked to discover less than 10% of politicians had any form of post-high-school scientific training. I think that’s a real loss for our Parliament and our society…I hope that the pandemic has shown the population and Governments the value of listening to evidence, and that this rubs off into other areas of policy-making.” But she refuses to tie the power of “this scientific type of thinking” to her own values. In her experience, a scientific mode of thinking invites “politicians of all persuasions” to work to integrate their ideology with evidence. A fiscally conservative scientist-politician is just as possible as a social-justice-minded and progressive one – the policies produced might well be different, but the base evidence is constant. Caples is similarly optimistic: “Regardless of politics, the foundational principles of science remains [sic] the same - which is to expand our knowledge of the natural world, to progress society and develop innovations to meet its challenges. While debates – political or otherwise – might take place on the peripheries of scientific learning, these tenets remain the same to build the evidence base.” After all, the pitch Webb made in his 1963 meeting with Kennedy relied not on social justice, progressivism nor Cold War tactics. It was so much simpler: “man [is] looking at three times what he’s never looked at before… and he understands the Universe just looking at those three things…these are going to be finite things in terms of the development of the human intellect. And I predict you are not going to be sorry, no Sir, that you did this.” Image 6: Vice President Kamala Harris administering the oath of office to Dr Eric Lander, as his wife Lori watches on. That notion of the lasting good that discovery can do – its place as a rung on the ladder of human progress, in so many ways beyond the governance of a single place or a single point in time – is a sentiment that echoes on through the decades. In June 2020, while being sworn in, Lander took some time to ruminate about the text on which he was swearing his oath of office. He told Vice President Kamala Harris about the particular page of the Mishnah (a Jewish text compiled from oral tradition) he had used, which discusses “a very special concept in Jewish tradition called Tikkun Olam, the repairing of the world…it says we don’t have to finish the work, but we may not refrain from doing that work…[it] speaks in many ways to the work of this administration, of repairing the world, building back better.” Caples’ final comments to OmniSci Magazine touch a similar note – “as a lapsed pharmacologist, I look at my work through the lens of a receptor-ligand binding model. Where the receptor is the problem that needs to be solved (or the opportunity to be pursued) and my role is to build the ligand that holds together long enough to bind to the receptor and effect change. The ligand of course has to have the right composition and 3-dimensional structure to be effective, that is people and governance framework.” Sandell agrees: “With the big challenges our world is facing - from climate change to pandemics - scientists are needed now more than ever. And for those thinking about going into policy-making, make sure you keep an open mind, look at the evidence and collaborate with others. Our world needs policy-makers who have a genuine desire to solve some of the big problems of our time, not people who are just in it for themselves. Don’t get discouraged by what you might see in Question Time or the depressing nature of politics at times - we need good, curious people from all walks of life to join politics to improve the tenor of debate and ultimately improve our world.” The consensus from all three? Yes – every day of the week, politics seems dirtier, and the policy problems seem greater than ever before. They may not be issues we can finish in our lifetimes – the solutions we create may not work, the “ligands” may not “bind”, forever. Yet because we might well fail is no reason to “refrain from doing that work”; no reason for “good, curious people” not to try. But, to the man who we began with – that energised professor in Building 26 at MIT – such philosophical musings are all yet to come. There, Dr Lander cracks a caustic quip about his students, reminding them that only a few centuries before, people thought their brains were only there to vent heat. It’s almost ironic to consider that his job will eventually hinge on a handful of brains and egos on Capitol Hill. Tikkun Olam: repairing the world. It appears to be the gallant ambition of saints. Or maybe the quixotic endeavour of fools. So complicated it hardly seems worth the effort. Throughout this magazine, you have read stories of science’s remarkable ability to create patterns amidst chaos, find the quantitative inside the qualitative and build order amidst disorder. These pages provide the opposite – offering no data to extrapolate, no empirical test to conduct, no nice charts and graphs to view. Just a messy, complicated ball of disordered contradictions. It was Aristotle who suggested that democracy was inherently dangerous – that this bubbling cauldron of ideas and ideals, pragmatism and ideology, could not be entrusted to the ballot box. And, indeed, the notion that everything would be easier should we just “follow the science”, as though science was some monolithic entity with its own set of ideologies, seems tempting from time to time. But the questions raised here – of immediate benefits weighed against blue-sky thinking; of hard-to-sell science pondered alongside popular mandates; of political leanings measured next to scientific impartiality – don’t fit nicely into our boxes of conservative and liberal; left and right; moderate and progressive. They are far too complex, far too nuanced and far too important to be rendered into a three-word slogan, a thirty-word answer, or even a three-thousand-word feature article. And maybe – just maybe - that’s why they matter. Andrew Lim is an Editor and Feature Writer with OmniSci Magazine. Image Credits (in order): Michael C. ’16, from “Eric Lander, spring rolls, and the New York Times” in MIT Admissions Blog Sept 6, 2012; Robert Knudsen. White House Photographs. John F. Kennedy Presidential Library and Museum, Boston; The Office of Ellen Sandell MP; The Office of the Lead Scientist of Victoria; Melina Mara/The Washington Post; Official White House Photo by Cameron Smith, accessed via the Library of Congress. Previous article back to DISORDER Next article

< Back to Issue 7 Staying at the Top of Our Game: the Evolutionary Arms Race by Aizere Malibek 22 October 2024 edited by Rita Fortune illustrated by Aizere Malibek Organisms have been competing for biological domination since the beginning of life. Evolutionary adaptations arise from genetic mutations, which propel biodiversification and allow organisms with favourable traits to survive and reproduce. This is the foundation of Charles Darwin’s Theory of Evolution, explaining the rise of antimicrobial resistance and contagious viruses, while also offering solutions to these threats in public health and medicine. Mutations in the DNA of pathogens allow them to adapt to our immunological defences and invade our bodies. Conversely, the variation in our immune cells allows us to detect and defend against pathogens as a counter-adaptation. Medicine has advanced dramatically in the recent decades, with novel vaccines, antivirals and antibiotics being developed quicker than ever before. Unfortunately, persistent pathogens have found a way to survive attacks from our immune systems and drugs, making it difficult to devise an effective cure for these infections. Take HIV, for instance: the virus activates programmed cell-death in our CD4+ T immune cells and alters their metabolism as a survival mechanism (Gougeon, 2003; Palmer et al., 2016). In turn, this directly reduces the immune system’s ability to defend against the virus. This is further complicated by the high mutation rate of HIV, leading to rapid resistance to various treatment options (Gupta et al., 2018). Fortunately, scientific discoveries are helping us develop solutions for infectious diseases. It was found that HIV is susceptible to immune responses in its initial immature stages, which has become a target of the current pursuits in vaccine development for the virus (Picker et al., 2012). Vaccines are beneficial in these cases because they expose memory cells in order to inactive microbial antigens, which are a key cell involved in our active immune responses. This allows our bodies to tackle the pathogens more efficiently, reducing the symptoms and long-term effects of infection. Another emerging treatment option is through CRISPR-Cas9 technology. Originally discovered as a bacterial defence system against viruses, CRISPR allows scientists to precisely edit genes. This technology is being explored not only for its potential to correct genetic disorders, but also as a weapon against pathogens. Researchers are looking into using CRISPR to target viral DNA in infected human cells, cutting it out before the virus can replicate (Mengstie & Wondimu, 2021). If successful, CRISPR could be a game-changer in the fight against diseases like HIV, influenza, and even the next pandemic. However, HIV is just one example of this ongoing evolutionary arms race between pathogens and humans. The phenomenon isn’t restricted to just viruses; bacteria and fungi have also become significant opponents. The rise of antibiotic resistance in bacteria is an alarming and rising public health issue today. Antibiotics are increasingly losing their efficacy due to misuse and overprescription. Pathogens like Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ) have developed multiple resistance mechanisms, including the production of enzymes that break down the antibiotic molecules before they can exert their effect (Reygaert, 2018). Methicillin-resistant Staphylococcus aureus (MRSA) is a prime example of antibiotic resistance. Initially, methicillin was developed to treat penicillin-resistant strains of bacteria. However, as methicillin became widely used, new strains of S. aureus emerged that could resist the potent drug. MRSA infections are now incredibly difficult to treat and pose a serious public health threat, particularly in hospitals and healthcare settings where immunocompromised patients are most vulnerable (Collins et al., 2010). Vaccines are not as effective against bacteria and fungi due to the more complex structures of these organisms. So how do we stay ahead in this race? One promising area of research is the development of next-generation antibiotics and antivirals. Researchers are now investigating bacteriophages—viruses that specifically infect bacteria—as a potential solution to antibiotic-resistant infections. These phages, which evolve alongside bacteria, could be used to target and destroy harmful bacterial strains without the collateral damage caused by traditional antibiotics (Plumet et al., 2022). While scientific innovation is key to staying ahead in the evolutionary arms race, public health policies play an equally important role. Misuse of antibiotics, for instance, has significantly accelerated the rise of antibiotic-resistant bacteria outside healthcare settings (David & Daum, 2010). Governments and healthcare organisations are now pushing for stricter regulations on antibiotic prescriptions and promoting the responsible use of these drugs. Global collaboration is also essential. Pathogens don’t respect national borders, and the spread of infectious diseases is a global issue. Initiatives like the World Health Organisation’s Global Antimicrobial Resistance Surveillance System (GLASS) are crucial in monitoring and controlling the spread of resistant pathogens worldwide. By sharing data and resources, countries can better coordinate their responses to emerging threats, mitigating the risks posed to global health. The dynamic shifts in power between humans and pathogens continues to unfold in this evolutionary arms race. While scientific innovation is allowing the development of new tools, from vaccines to gene-editing technologies, we must also adopt policies that promote responsible drug use and global cooperation. In this race, staying at the top of our game requires constant vigilance, innovation, and adaptation—because pathogens certainly aren’t slowing down. The stakes are high, but with continued research and collaboration, we have the potential to maintain the upper hand in this ever-evolving battle for survival. References Collins, J., Rudkin, J., Recker, M., Pozzi, C., O'Gara, J. P., & Massey, R. C. (2010). Offsetting virulence and antibiotic resistance costs by MRSA. Isme Journal, 4(4), 577-584. https://doi.org/10.1038/ismej.2009.151 David, M. Z., & Daum, R. S. (2010). Community-Associated Methicillin-Resistant Staphylococcus aureus : Epidemiology and Clinical Consequences of an Emerging Epidemic. Clinical Microbiology Reviews, 23(3), 616-+. https://doi.org/10.1128/cmr.00081-09 Gougeon, ML. Apoptosis as an HIV strategy to escape immune attack. Nat Rev Immunol 3 , 392–404 (2003). https://doi.org/10.1038/nri1087 Gupta, R. K., Gregson, J., Parkin, N., Haile-Selassie, H., Tanuri, A., Forero, L. A., Kaleebu, P., Watera, C., Aghokeng, A., Mutenda, N., Dzangare, J., Hone, S., Hang, Z. Z., Garcia, J., Garcia, Z., Marchorro, P., Beteta, E., Giron, A., Hamers, R., . . . Bertagnolio, S. (2018). HIV-1 drug resistance before initiation or re-initiation of first-line antiretroviral therapy in low-income and middle-income countries: a systematic review and meta-regression analysis. Lancet Infectious Diseases, 18(3), 346-355. https://doi.org/10.1016/s1473-3099(17)30702-8 Mengstie, M. A., & Wondimu, B. Z. (2021). Mechanism and Applications of CRISPR/Cas-9-Mediated Genome Editing. Biologics-Targets & Therapy, 15, 353-361. https://doi.org/10.2147/btt.S326422 Palmer, C. S., Cherry, C. L., Sada-Ovalle, I., Singh, A., & Crowe, S. M. (2016). Glucose Metabolism in T Cells and Monocytes: New Perspectives in HIV Pathogenesis. EBioMedicine, 6, 31–41. https://doi.org/10.1016/j.ebiom.2016.02.012 Picker, L. J., Hansen, S. G., & Lifson, J. D. (2012). New Paradigms for HIV/AIDS Vaccine Development. In C. T. Caskey, C. P. Austin, & J. A. Hoxie (Eds.), Annual Review of Medicine, Vol 63 (Vol. 63, pp. 95-111). https://doi.org/10.1146/annurev-med-042010-085643 Plumet, L., Ahmad-Mansour, N., Dunyach-Remy, C., Kissa, K., Sotto, A., Lavigne, J. P., Costechareyre, D., & Molle, V. (2022). Bacteriophage Therapy for Staphylococcus Aureus Infections: A Review of Animal Models, Treatments, and Clinical Trials. Frontiers in cellular and infection microbiology, 12, 907314. https://doi.org/10.3389/fcimb.2022.907314 Reygaert, W. C. (2018). An overview of the antimicrobial resistance mechanisms of bacteria. Aims Microbiology, 4(3), 482-501. https://doi.org/10.3934/microbiol.2018.3.482 Previous article Next article apex back to

< Back to Issue 4 Real Life Replicants by Elijah McEvoy 1 July 2023 Edited by Yasmin Potts and Megane Boucherat Illustrated by Jolin See Hal, Ultron and (of course) the Terminator. Comparisons between these fictional, world-destroying, artificial intelligence systems and those in our current age of AI are seemingly never-ending. As a child born with a lightsaber in hand, I find these sensationalist remarks endlessly entertaining. Not only because it baffles me to see concepts once relegated to the realm of science fiction be discussed as serious news topics, but also because they’ve got their references all mixed up. The current challenge posed by the new wave of generative artificial intelligence doesn’t come in the form of a ruthless, gun-toting Arnie. It comes in the form of replicants. Just like these uncannily human androids from Ridley Scott’s cult classic Blade Runner, the rapidly increasing capacity of AI to talk, look and create like humans is beginning to blur the line between what is authentically human and what is the product of an algorithm. From the posh C3P0 to the snarky Cortana, having a friendly AI sidekick has always been a childhood dream of mine. This dream has now become a reality with the rise in AI chat-bots. At the forefront of these is Replika, an app that enables users to talk to their own personalized AI via the use of text-like messages. For its two million users (1), Replika provides a variety of functions. For some, Replika acts as a friend in times of loneliness; a feature that contributed to its spike in users during the height of the COVID-19 pandemic (2). For others, as founder Eugenia Kuyda suggests, it provides a space for users to “open up” about personal or mental health issues and “feel accepted” by a human-like figure (1). For many though, Replika is a digital romantic partner. While it is easy to snicker at the concept of an AI girlfriend, those with past relationship trauma or those living in environments that may be hostile towards their sexuality have used Replika as an outlet to explore genuine feelings of love in a safe setting (3). However, with such attachment comes the chance for exploitation. As stated by Nir Eisikovits, Director of the Applied Ethics Centre at the University of Massachusetts, his concern is “not whether machines are sentient” but rather our own tendency “to imagine that they are” (4). Like the holographic billboards for the AI “JOI” in Blade Runner 2049, suggestive advertisements and aggressive flirting by the AI itself have all been employed by Replika to encourage users to stay on the app and pay a premium subscription for explicit content (5). While Replika has since removed sexual material, the large backlash from users at this decision (6) highlights the unethically coercive power such mimicry of human personality could have on consumers. For years, we’ve been warned of the danger of manipulative TV advertisements encouraging excessive junk food consumption and gambling. Imagine what could be done when that ad is no longer a 30 second video but instead an anthropomorphized AI tailored exactly to you, your interests and your vulnerabilities. Not only is AI replicating the way we talk, but also how we look. From videos of an animated Tom Cruise to convincing photos of a Balenciaga-wearing Pope (7), advanced deepfake videos and prompt-generated images from AI systems like DALL-E are becoming easier to create by the day (8). While the most prominent use of this technology is currently in the form of harmless memes, it can and has been used for more sinister means. Women across the world have had their faces used in non-consensual deepfake pornography, often as a form of revenge or blackmail (9). Furthermore, a fabricated video of Volodymyr Zelensky surrendering to Vladimir Putin that spread on social media last year proves AI’s unsettling potential in political disinformation (8). While fakes like that of Zelensky may have been taken down quickly due to easily identifiable tells, in many cases the damage has already been done the moment people see these videos or images. Mistrust in the news is heightened and real evidence can be accused of being AI generated, a strategy already implemented by Donald Trump to dismiss evidence of his misogyny (8). Although the current usage of this technology is concerning enough, the degradation of truth within society will only worsen as these replicants become increasingly accurate and faster to produce (8). Still, it is the ability for AI to complete jobs once thought to be uniquely human that will result in the largest change to the current status quo. Latest estimates from Goldman Sachs state that close to 300 million jobs globally could be automated by the current AI wave (10). The threat of job losses due to automation is far from new, stretching all the way back to 1811 with the infamous Luddites protesting factory machines (11). However, generative AI is placing a greater variety of jobs in jeopardy due to its ability to exude human creativity, giving rise to what Stanford Professor Victor R. Lee entitles an “authenticity crisis” (12). One of those jobs is that of writers. A common phrase amongst movie reviewers today is “this could have been written by an AI”. While usually used as a jab against the latest Marvel movie, large language models like Chat GPT that are capable of identifying and mimicking patterns in writing make it more than just a joke. Amongst calls for better conditions for screenwriters, a key demand from the Writers Guild of America in this year's Los Angeles writers’ strike was that AI will not be used to write or rewrite scripts (13). When you combine the growing authenticity of these AI with the greedy desires of major studios, it is not a far cry to suggest that producers may use AI to quickly generate scripts for generic soap operas and cash grab Netflix movies, leaving the human creatives to simply ‘clean-up’ these stories at a cut pay rate. Despite all these concerns, generative AI does have the ability to immeasurably improve society. The capacity of this technology to increase workplace efficiency (10), accelerate scientific progress (14) and constantly amuse us with clips of a rapping Joe Biden is undeniable. With the cat out of the bag, innovation in these areas cannot nor should not be halted completely. However, if sci-fi movies have taught me anything useful, it’s that we should not be blinded by the potential of scientific progress. Whether it be through governmental action to regulate the use of AI in industry or the scientific development of better deepfake-spotting technology to help stifle disinformation, implementing safeguards around AI is crucial in avoiding its “ethical debt” (15). Whilst looking to the world of science fiction as an indication of our future may be a bit far-fetched, it may also be a needed reminder of the world scientists should try not to replicate. References Tong A. AI company restores erotic role play after backlash from users ‘married’ to their bots [Internet]. The Sydney Morning Herald. 2023 [cited 2023 May 14]. Available from: https://www.smh.com.au/world/north-america/ai-company-restores-erotic-roleplay-after-backlash-from-users-married-to-their-bots-20230326-p5cvao.html Clarke L. ‘I learned to love the bot’: meet the chatbots that want to be your best friend. The Observer [Internet]. 2023 Mar 19 [cited 2023 May 14]; Available from: https://www.theguardian.com/technology/2023/mar/19/i-learned-to-love-the-bot-meet-the-chatbots-that-want-to-be-your-best-friend The rise and fall of replika [Internet]. [cited 2023 May 14]. Available from: https://www.youtube.com/watch?v=3WSKKolgL2U Eisikovits N. AI isn’t close to becoming sentient – the real danger lies in how easily we’re prone to anthropomorphize it [Internet]. The Conversation. 2023 [cited 2023 May 14]. Available from: http://theconversation.com/ai-isnt-close-to-becoming-sentient-the-real-danger-lies-in-how-easily-were-prone-to-anthropomorphize-it-200525 Cole S. ‘My ai is sexually harassing me’: replika users say the chatbot has gotten way too horny [Internet]. Vice. 2023 [cited 2023 May 14]. Available from: https://www.vice.com/en/article/z34d43/my-ai-is-sexually-harassing-me-replika-chatbot-nudes ‘My wife is dead’: How a software update ‘lobotomised’ these online lovers. ABC News [Internet]. 2023 Feb 28 [cited 2023 May 14]; Available from: https://www.abc.net.au/news/science/2023-03-01/replika-users-fell-in-love-with-their-ai-chatbot-companion/102028196 How to spot an ai-generated image like the ‘balenciaga pope’ [Internet]. Time. 2023 [cited 2023 May 14]. Available from: https://time.com/6266606/how-to-spot-deepfake-pope/ Wong M. We haven’t seen the worst of fake news [Internet]. The Atlantic. 2022 [cited 2023 May 14]. Available from: https://www.theatlantic.com/technology/archive/2022/12/deepfake-synthetic-media-technology-rise-disinformation/672519/ Atillah IE. AI could make deepfake porn an even bigger threat for women [Internet]. euronews. 2023 [cited 2023 May 14]. Available from: https://www.euronews.com/next/2023/04/22/a-lifelong-sentence-the-women-trapped-in-a-deepfake-porn-hell Toh M. 300 million jobs could be affected by latest wave of AI, says Goldman Sachs | CNN Business [Internet]. CNN. 2023 [cited 2023 May 14]. Available from: https://www.cnn.com/2023/03/29/tech/chatgpt-ai-automation-jobs-impact-intl-hnk/index.html McClelland C. The impact of artificial intelligence - widespread job losses [Internet]. IoT For All. 2023 [cited 2023 May 14]. Available from: https://www.iotforall.com/impact-of-artificial-intelligence-job-losses Hollywood writers are on strike over an AI threat that some are warning is coming for you next. ABC News [Internet]. 2023 May 5 [cited 2023 May 14]; Available from: https://www.abc.net.au/news/2023-05-06/hollywood-writer-s-strike-over-pay-and-artificial-intelligence/102296704 Lee VR. Generative AI is forcing people to rethink what it means to be authentic [Internet]. The Conversation. 2023 [cited 2023 May 14]. Available from: http://theconversation.com/generative-ai-is-forcing-people-to-rethink-what-it-means-to-be-authentic-204347 The AI revolution in science [Internet]. [cited 2023 May 14]. Available from: https://www.science.org/content/article/ai-revolution-science Fiesler C. AI has social consequences, but who pays the price? Tech companies’ problem with ‘ethical debt’ [Internet]. The Conversation. 2023 [cited 2023 May 14]. Available from: http://theconversation.com/ai-has-social-consequences-but-who-pays-the-price-tech-companies-problem-with-ethical-debt-203375 Previous article Next article back to MIRAGE

< Back to Issue 4 Big Bang To Black Holes: Probing the Illusionary Nature of Time by Mahsa Nabizada 1 July 2023 Edited by Elijah McEvoy and Caitlin Kane Illustrated by Aisyah Mohammad Sulhanuddin Time is ubiquitous: it governs our daily lives, marking our existence from birth to death. We measure time in seconds, minutes, hours, days or years, using man-made tools like clocks and calendars which reinforce the perception that it is tangible and objective. In fact, the most used noun in English is time (1). However, delving into the realms of science and philosophy, the true nature of time becomes illusionary. We can acknowledge our personal perception of time is inherently subjective. Our experiences of time vary depending on our surroundings, emotional state and physical state. For example, while time may seem to drag on when we're bored or anxious, it can pass quickly when we're having a good time. Although we imagine time to be objective, it could be merely an illusion resulting from the limitations of our perceptions and the conditions of our observation. Exploring these questions requires scientific perspectives, so let's delve into the enigmatic physics of time. In three-dimensional space, physical spaces are fixed, meaning that we can revisit the same location repeatedly. For example, we may visit our favourite restaurant as many times as we wish. However, this is not the case with time. Time only moves forward, and we cannot go back to a previous moment; it belongs to the past and cannot be retrieved (2). This unidirectional nature of time is referred to as the arrow of time. Time is believed to originate from the Big Bang, the event that marked the beginning of the universe (3). From that point, time has progressed towards the present, where you are currently reading this article, and it continues to move into the future. The second law of thermodynamics, known as entropy, plays a crucial role in representing the forward movement of this arrow of time (4). Entropy refers to the state of disorder, uncertainty, or randomness in a system like a measure of the disorder present in the universe. At the moment of the Big Bang, the universe had low entropy, with matter and energy concentrated and organised. However, since that initial state, matter in the universe has been expanding and moving away from each other, leading to an increase in entropy and transforming the universe into a high entropy system. The concepts of the arrow of time and entropy, guided by the second law of thermodynamics, allow for a distinction between the past and the future and play a pivotal role in the existence of life. Without entropy and the resulting change there would be no discernible difference between events that occurred 1000 years ago and events happening in the present. Furthermore, the progression of life from birth to death can be explained through the phenomenon of entropy, as governed by the second law. However, on the quantum level, the behaviour of particles becomes more complex. Just as there is no inherent forward or backward direction in vast space, at the molecular level, the concept of entropy is not as apparent. While time appears to have a clear direction on the macroscopic level, when observing the particles that make up the universe, time can flow and operate in multiple directions. The laws of physics that govern these particles do not distinguish between the past and the future. They describe the behaviours of physical systems without differentiating between temporal directions. The theory of general relativity, proposed by Albert Einstein, provides a fundamental framework for understanding the workings of spacetime (5). According to the theory of general relativity, the presence of mass or energy causes a distortion in the fabric of spacetime, which in turn affects the motion of other objects. For example, it describes gravity as the curvature of spacetime caused by the presence of mass and energy. Essentially, spacetime can be thought of as a fluid that is influenced by both gravity and velocity. This theory has illuminated not just the behaviour of celestial bodies and the vast structure of the universe, but also enhanced our understanding of the intricate interplay between space, time, and matter. Within Einstein’s theories, time dilation is a scientific phenomenon that can be explored through a thought experiment known as the twin paradox (6). It demonstrates how the perception of time can vary between two individuals who experience different levels of motion or gravitational forces. Time dilation is not limited to the twin paradox or space travel; it is a fundamental concept in understanding the relationship between time, motion, and gravity. It has been experimentally confirmed and plays a significant role in our understanding of the universe. Imagine you, Twin A, are stationary on Earth while your sister, Twin B, is traveling in a rocket at a constant speed. Due to the sideways motion of the rocket, Twin B’s clock will appear slower to Twin A since her path through spacetime is longer due to the effects of special relativity and time dilation. Therefore, from Twin A’s perspective on Earth, time seems to pass slower on the moving rocket. However, from Twin B’s perspective, Twin A is the one in motion and therefore Twin A’s clock appears slower to her. Both frames of reference seem to indicate that the other's clock is slower, which seems contradictory. In reality, both observations are correct because the laws of physics remain the same in both frames of reference. Now, the question arises: who is actually younger? According to each twin's viewpoint, the other twin is younger. However, in reality, only one twin can have aged less than the other. Fortunately, there is a resolution to this paradox. When Twin B turns around to return to Earth, she undergoes acceleration which means the usual laws no longer apply. As a result, Twin B will be younger than her Earth-bound sister, Twin A, upon returning to Earth due to the effects of acceleration. To explain this effect during the period of acceleration, we need to consider that general relativity causes time dilation in the presence of gravitational fields. Gravitational time dilation means that clocks run slower in stronger gravitational fields compared to clocks in weaker gravitational fields. During the acceleration phase, when Twin B’s rocket is returning to Earth, her time now appears to go slower, while the clock on Earth appears to run faster. This phenomenon is similar to the extreme time dilation experienced near the edge of a black hole, known as an event horizon (7). From the observer’s frame of reference outside the black hole, time slows as an object approaches the event horizon, until it appears time has stopped. Hence an object falling into the black hole would appear to have stopped, completely frozen. Even though it governs our daily lives and despite our ability to measure it with great accuracy, there is no definitive answer to what time truly is. From the subjective experiences of our daily lives to the enigmatic physics of the Big Bang and black holes, the illusionary nature of time unveils an array of complexities, reminding us that this fundamental concept remains one of the most captivating mysteries of our existence. As famously stated by Einstein: "For us believing physicists, the distinction between past, present, and future is only a stubbornly persistent illusion” (8). References Study: “Time” Is Most Often Used Noun [Internet]. www.cbsnews.com . 2006. Available from: https://www.cbsnews.com/news/study-time-is-most-often-used-noun/ Davies P. The arrow of time. Royal Astronomical Society [Internet]. 2005 Feb 1 [cited 2023 Jun 4];46(1):1.26–9. Available from: https://academic.oup.com/astrogeo/article/46/1/1.26/253257 University of Western Australia. Evidence for the Big Bang [Internet]. Evidence for the Big Bang. 2014 p. 1–4. Available from: https://www.uwa.edu.au/study/-/media/Faculties/Science/Docs/Evidence-for-the-Big-Bang.pdf Hall N. Second Law - Entropy [Internet]. Glenn Research Center | NASA. 2023. Available from: https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/second-law-entropy/ Norton JD. General Relativity [Internet]. sites.pitt.edu . 2001 [cited 2022 Feb]. Available from: https://sites.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/general_relativity/ Perkowitz S. Twin paradox | physics | Britannica. In: Encyclopædia Britannica [Internet]. 2020 [cited 2013 Jun 14]. Available from: https://www.britannica.com/science/twin-paradox Hadi H, Atazadeh K, Darabi F. Quantum time dilation in the near-horizon region of a black hole. Physics Letters B [Internet]. 2022 Nov 10 [cited 2023 Jun 11];834:137471. Available from: https://www.sciencedirect.com/science/article/pii/S0370269322006050 A Debate Over the Physics of Time | Quanta Magazine [Internet]. Quanta Magazine. 2016. Available from: https://www.quantamagazine.org/a-debate-over-the-physics-of-time-20160719/ Previous article Next article back to MIRAGE

Exciting technological leaps are being made in the futuristic field of visual prostheses. Australians suffering from visual impairment can be helped by emerging treatments including Bionic Eyes: a sight for sore eyes. This piece takes a look at the prevalent impairments and our ocular opportunities to treat them. Bionics: Seeing into the Future By Joshua Nicholls While the Bionic Eye might seem like a technology of the far future, exciting advancements are being made in the field of visual prostheses. This piece points a keen eye at emerging treatments for some of the most prominent diseases, along with their possible bionic treatments. Issue 1: September 24, 2021 Illustration by Friday Kennedy Visual prostheses, colloquially known as bionic eyes, are a set of experimental devices designed to restore — or partially restore — vision to those with varying levels of blindness (1). While once viewed as “science fiction”, these technologies are becoming a reality for thousands of Australians with visual impairments. Since its inception in 1956 by the Australian inventor Graham Tassicker (2), the idea of restoring vision using electronics has undergone several developments, ranging from rudimentary cortical stimulation to modern advancements in state-of-the-art retinal implants. As of 2018, it was estimated that over 13 million Australians have some form of visual impairment. Of these 13 million, 411,000 have cataracts or the clouding of the lens; 244,00 have macular degeneration, which degrades fine detail vision; and 133,000 are either partially or entirely blind (3,4). The economic burden of blindness in Australia is substantial. In 2009, it was estimated that the total cost of vision loss per person aged 40 and over was $28,905 — a nationwide total of 16.6 billion AUD (5). Figure 1: Categorisation of Total Economic Cost of Vision Loss in 2009 (5) Age-related macular degeneration (AMD) is one condition for which visual prosthetics may be applicable. AMD refers to the irreversible loss of high-acuity, colour-sensitive cone cells in the centre field of vision. This structure of the retina is responsible for reading, recognising faces, driving, and other visual tasks that require sharp focal vision. In fact, you are using these cells to read this article right now. Its typical onset is later in life, affecting 12% of people aged 80 or over (6). As the leading chronic eye condition for elderly Australians (7), it accounts for 48% of all cases of blindness nationwide (8). According to AIHW4, there is also a higher prevalence amongst females than in males — between 4.9%–6.8% and 3.6–5.1%, respectively. Macular degeneration exists in two forms: dry and wet. Dry macular degeneration is caused by thinning of the macula; it is the most common form of the disease and progresses slowly over many years. Wet macular degeneration is a potentially more severe variation of the disease which is caused by the sudden development of leaky blood vessels around the macula (9). With no known cure — and most treatments being directed towards prevention and delaying progression — interventions relying on prosthetics may be the best hope for the restoration of lost eyesight (10). Graham Tassicker was the first to realise the potential utility of cortical stimulation in restoring sight to those with vision loss. In 1956, Tassicker developed a photosensitive selenium cell which, when placed behind the retina, resulted in phosphene visualisation — the phenomenon of seeing light without light actually entering the eye (2). This was the first evidence of non-cortical stimulation to elicit visual experience. It was in the 1990s that visual prostheses took a radical development; sophisticated retinal surgeries and the creation of biomaterials led to a surge of novel inventions, including cortical implant miniaturisation and artificial retinas — the latter of which is the most advanced to date. There is currently a state-of-the-art retinal bionic system that has recently undergone clinical trial research: the Argus II Retinal Stimulation System. The Argus is an epiretinal (above the retina) implant which has been designed by SecondSight; as of 2013, it was FDA approved for retinitis pigmentosa (RP) but has potential utility for dry AMD. It consists of a device that is implanted in the patient’s eye and an external processing unit worn by the user. The system consists of sixty electrodes, each of which is two-hundred-micrometres in diameter. Images that have been captured by a small camera on glasses are converted into electrical impulses to stimulate surviving ganglion cells on the retina. It is currently the most widely used retinal prosthetic system in the world, with more than 350 RP patients being treated to date. The cost of this device is 150,000 USD — a price that excludes surgery and post-operative training (11). Figure 2: The design of the Argus II (12) In 2015, a case study was performed by the Argus II study group on the impact the implant would have on restoring visual function to subjects who had complete blindness from RP. The results from this study were quite promising; it showed that of the 30 patients who received the Argus II system, all significantly performed better on a white square test than they did without the prosthesis. (None of the subjects scored any points with the device absent.) The Argus also showed reliability for 29 subjects, all of whom still had functioning devices after three years (13). In 2020, a clinical trial of this device for dry AMD was completed. The study, which consisted of five patients, assessed the safety and feasibility of the device. According to Mills et al. (14), no patients reported confusion when operating the Argus alongside their healthy peripheral vision. Adverse events occurred in two patients who experienced proliferative vitreoretinopathy — or tractional retinal detachment. However, due to recent events surrounding the COVID-19 pandemic, the company declared that they would be performing “an orderly wind-down of the company’s operations”. SecondSight is now focusing on a new device: The Orion. This device is designed to stimulate the visual cortex of the brain — a return to the original conception of visual prosthetics. The Orion is planned to expand the pool of patients who are eligible for visual prosthetics. It will essentially bypass the requirement for healthy ganglion cells and a functioning optic nerve, which retinal prosthetics require. The only forms of blindness not encompassed by this technique are congenital forms of blindness or people who are ‘cortically blind’ from suffering damage to the visual cortex area V1. The Orion is modelled after the Argus II with its 60 cortical-stimulating electrodes receiving input from a camera on the user’s glasses. Under the Breakthrough Device Pathway, the FDA approved Orion for an early feasibility study. Six human subjects have been fitted with the device — one woman and five men between the ages of 29 and 57. Of these six, one had endophthalmitis, two had glaucoma, and three suffered trauma. After one year of wearing the device, four of the patients could accurately discern the location of a palm-sized white square on a computer screen, and five could locate its movement in space. The Orion has shown a good safety profile after 12 months of use, and follow-ups on its progress will occur for five years (15). Visual prostheses have a promising and bright future of development ahead of them. While it is still in its infancy, the results of ongoing clinical trials show promise for sight restoration. With multiple models and modes of intervention available, artificial vision is slowly becoming a reality for the visually impaired, but further developments in the field are still required. It would be promising to see advancements from mere two-dimensional grey-scale images to the rich, three-dimensional, and full-colour experience that we take for granted as normal vision. For now, two essential factors need to be improved for the full realisation of artificial vision: cost and electrode density. The Argus costs 150,000 USD — an expense that excludes surgery and training. This figure may be unfeasible for the thousands of Australians who would benefit from such a device. If the current trend of Moore’s Law continues, electrode density will increase whilst the cost of the device will decrease — a trend analogous to the increase in power and improved price of computers in the last century. This pixel density will hopefully improve to the point of achieving near-normal visual acuity. The 60 pixels, while helpful in regaining some functionality, cannot compare to the some 96 million photoreceptor cells in the retina — 5 million of which are located in the cone-dense macula. Nevertheless, artificial vision is an exciting and innovative technology currently under development. While much research is still needed, further advancements in bionics will one day make visual prosthetics a ubiquitous and affordable technology to those in need. About the writer: Joshua Nicholls was the 2021 winner of the Let's Torque competition. Joshua : I am a 5th-year neuroscience and biochemistry student at the Swinburne University of Technology. I finished my Health Science degree a few years ago, majoring in neuroscience. I am now completing my final few subjects in my Bachelor of Science, with biochemistry as my major. For the state-wide Let’s torque competition, I changed my pitch to artificial vision, hence its title, Bionics: Seeing into the Future—a catchy pun, if I do say so myself. I made the rather complex topic of visual prosthetics approachable and understandable to the general audience by, as stated previously, conveying a story. I asked my audience to consider losing vision, if not completely, at least partially. Considering this, I then asked them to imagine what life must be like for the some 13 million Australians of whom suffer from some form of visual impairment. This exercise brought home the very real phenomenon of visual impairment, which many of us have—or will—be impacted. The solution for currently untreatable vision loss is already underway: The Bionic Eye, as it is colloquially known. While it may sound like science fiction, bionics (or prosthetics) are nothing new; artificial hearing through the cochlear implant and artificial limbs are becoming rather ubiquitous. I briefly detailed a few diseases for which visual prosthetics may be appropriate, such as age-related macular degeneration and retinitis pigmentosa, and spoke about past and current clinical trials demonstrating their efficacy. To end my pitch, I talked about the lasting impact these devices will have on people’s lives and the future developments required. In doing so, I relayed the past, present, and future of the bionic eye, which detailed a coherent and relatable story to my audience. I was successful in my pitch and won first place among the state! It was an absolute privilege even to have been a part of this competition; coming first place was an added honour and will remain one of the highlights of my life. I believe this experience will serve as a footstone toward my career in science and science communication. If anyone has any desires to get their foot in the door of this field, get your name and face out there and just go for it! References: Ong, J. M., & da Cruz, L. (2012). The bionic eye: a review. Clinical & experimental ophthalmology, 40(1), 6-17. Tassicker, G. (1956). Preliminary report on a retinal stimulator. The British journal of physiological optics, 13(2), 102-105. Australian Bureau of Statistics. (2018). National Health Survey: First Results, 2017–18. Canberra: ABS Retrieved from https://www.abs.gov.au/statistics/health/health-conditions-and-risks/national-health-survey-first-results/latest-release Australian Institute of Health and Welfare. (2021). Eye health. Canberra: AIHW Retrieved from https://www.aihw.gov.au/reports/eye-health/eye-health Taylor, P., Bilgrami, A., & Pezzullo, L. (2010). Clear focus: The economic impact of vision loss in Australia in 2009. Vision2020. Retrieved from https://www.vision2020australia.org.au/wp-content/uploads/2019/06/Access_Economics_Clear_Focus_Full_Report.pdf Mehta, S. (2015). Age-related macular degeneration. Primary Care: Clinics in Office Practice, 42(3), 377-391. Foreman, J., Xie, J., Keel, S., van Wijngaarden, P., Sandhu, S. S., Ang, G. S., . . . Taylor, H. R. (2017). The prevalence and causes of vision loss in Indigenous and non-Indigenous Australians: the National eye health survey. Ophthalmology, 124(12), 1743-1752. Taylor, H. R., Keeffe, J. E., Vu, H. T. V., Wang, J. J., Rochtchina, E., Mitchell, P., & Pezzullo, M. L. (2005). Vision loss in Australia. Med J Aust, 182(11), 565-568. doi:10.5694/j.1326-5377.2005.tb06815.x Calabrese, A., Bernard, J.-B., Hoffart, L., Faure, G., Barouch, F., Conrath, J., & Castet, E. (2011). Wet versus dry age-related macular degeneration in patients with central field loss: different effects on maximum reading speed. Investigative ophthalmology & visual science, 52(5), 2417-2424. Cheung, L. K., & Eaton, A. (2013). Age‐related macular degeneration. Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy, 33(8), 838-855. Luo, Y. H.-L., & Da Cruz, L. (2016). The Argus® II retinal prosthesis system. Progress in retinal and eye research, 50, 89-107. SecondSight. (2021). SecondSight: Life in a New Light. Retrieved from https://secondsight.com/ Ho, A. C., Humayun, M. S., Dorn, J. D., Da Cruz, L., Dagnelie, G., Handa, J., . . . Hafezi, F. (2015). Long-term results from an epiretinal prosthesis to restore sight to the blind. Ophthalmology, 122(8), 1547-1554. Mills, J., Jalil, A., & Stanga, P. (2017). Electronic retinal implants and artificial vision: journey and present. Eye, 31(10), 1383-1398. Pouratian N., Yoshor D., & Greenberg R. (2019). Orion Visual Cortical Prosthesis System Early Feasibility Study: Interim Results. Paper presented at American Academy of Ophthalmology Annual Meeting.

< Back to Issue 5 Serial Killers Selin Duran 24 October 2023 Edited by Yasmin Potts Illustrated by Aditya Dey Serial killers. Do we love them or hate them? It’s hard to know, especially as the media surrounding them is increasing. From fiction to nonfiction killers, our society is obsessed with giving a voice and perspective to these people. We have movies, documentaries, TV series and even Youtube videos accounting the lives and stories of killers. Despite this, people rarely stop to ask themselves why they enjoy this style of media - some of the most wicked and gruesome acts, glorified for the interest of many. Yet, every day we are met with new shows highlighting the life of coldblooded killers. But why are we interested in them? It’s mostly a morbid curiosity; as humans, we are drawn to crime. We want to know why people choose to kill and how they do it. Jack Haskins, a University of Tennessee journalism professor, noted that "humans [are] drawn to public spectacles involving bloody death...Morbid curiosity, if not inborn, is at least learned at a very early age " (UPI Archives, 1984). As a collective, we have always wanted to explore the horrid acts of those who kill. But it’s only with the help of modern media that people enjoy them. Media loves a good story - and what makes a good story? A crazy serial killer on the loose. One of the earliest movies about a serial killer is Fritz Lang's 1931 film M . Set in Berlin, the film details a killer who targets children. Since then, a downward spiral of fictional serial killer movies has taken society by storm. Being all the craze during the mid-80s and 90s, the highest amount of serial killer media were produced in this timeframe. One of the most popular works is director Alfred Hitchcock's iconic Psycho, which won eight Academy Awards (IMDb, 2021). What is truly disturbing is the story of this film. Norman Bates, our killer, is deemed mentally insane and suffers from Dissociative Identity Disorder. Through his personality changes, he proceeds to kill two people during the film, in addition to multiple murders not depicted. Yet, when he is jailed, we learn that his actions were the result of abuse he endured when he was younger. Suddenly, we're forced to feel sympathetic towards his situation. How can that be a reasonable justification towards murder, and why do we applaud the film for this? As a society, accepting murder based on mental insanity seems more than unreasonable - but no one has questioned it thus far. This unfortunately happens not only with fictional killers, but with nonfiction ones. Our interest in killers turns into a way to inform ourselves of these situations (Harrison, 2023). We look to these documentaries and podcasts that tell the stories of the most notorious serial killers to learn something and prevent the situation from happening to us. All whilst indulging in content that emphasises these killers as being regular people, not evil individuals, who committed crimes for personal pleasure. We don’t need to see a biopic about the ventures of Ted Bundy and Jeffery Dahmer. Yet the second you search their names on Google, an all-star cast portraying the life of a man who tortured their victims fills your screen. This is certainly not an ethical thing to endorse. Despite this, not a single person thinks twice about it due to how common it is. Directors are profiting off victims and as a society, we are allowing it because of our curiosity. What happened to compassion? Because I certainly believe we have lost it. We have become so infatuated with killers that their actions seem unimportant to us. We yearn to discover more about their lives and forget that real people were implicated in these events. These killer stories provide bursts of short-lived adrenaline and then we return to our normal lives. In forgetting the consequences of these real stories, we are in many ways as bad as the killers themselves. And that is truly wicked. References Harrison, M. A. (2023). Why Are We Interested in Serial Killers? Just as Deadly: The Psychology of Female Serial Killers . Cambridge: Cambridge University Press, 17–31. https://www.cambridge.org/core/books/just-as-deadly/why-are-we-interested-in-serial-killers/B35C2243B387273749EA164318C27623?utm_campaign=shareaholic&utm_medium=copy_link&utm_source=bookmark IMDb. (2021). Psycho (1960) - Awards . https://www.imdb.com/title/tt0054215/awards/ UPI Archives. (1984). Few answers on origin of morbid curiosity. UPI. https://www.upi.com/Archives/1984/04/07/Few-answers-on-origin-of-morbid-curiosity/7976450162000/#:~:text=%27Throughout%20human%20history%2C%20humans%20have Wicked back to

< Back to Issue 2 Hiccups Evolution might be a theory, but if it’s evidence you’re after, there’s no need to look further than your own body. The human form is full of fascinating parts and functions that hold hidden histories - from the column that brought you a deep-dive into ear wiggling in Issue 1, here’s an exploration of why we hiccup! by Rachel Ko 10 December 2021 Edited by Katherine Tweedie and Ashleigh Hallinan Illustrated by Gemma Van der Hurk Hiccups bring a special brand of chaos to a day. It’s one that lingers, rendering us helpless and in suspense; a subtle, internal chaos of quiet frustration that forces us to drop what we’re doing to monitor each breath – in and out, in and out – until the moment they abruptly decide to stop. It’s an experience we’ve all had – one that can hit anyone at any time – and for most of us, hiccups are a concentrated episode of inconvenience; best ignored, and overcome. Yet, despite our haste to get rid of them when they interrupt our day, hiccups seem to have mystified humans for generations. Historically, the phenomenon has been the source of many superstitions, both good and bad. A range of cultures associate them with the concept of remembrance: in Russia, hiccups mean someone is missing you (1), while an Indian myth suggests that someone is remembering you negatively for the evils you have committed (2). Likewise, in Ancient Greece, hiccups were a sign that you were being complained about (3), while in Hungary, they mean you are currently the subject of gossip. On a darker note, a Japanese superstition prophesises death to one who hiccups 100 times. (4) Clearly, the need to justify everything, even things as trivial as hiccups, has always been an inherent human characteristic, transcending culture and time. As such, science has more recently made its attempt at objectively identifying a reason behind the strange phenomenon of hiccups. After all, if you take a step back and think about it, hiccups are indeed quite strange. Anatomically, hiccups (known scientifically as singultus) are involuntary spasms of the diaphragm (5): the dome-like sheet of muscle separating the chest and abdominal cavities. (6) The inspiratory muscles, including the intercostal and neck muscles, also spasm, while the expiratory muscles are inhibited. (7) These sudden contractions cause a rapid intake of air (“hic”), followed by the immediate closure of the glottis or vocal cords (“up”). (8) As many of us have probably experienced, a range of stimuli can cause these involuntary contractions. The physical stimuli include anything that stretches and bloats the stomach, (9) such as overeating, rapid food consumption and gulping, especially of carbonated drinks. (10) Emotionally, intense feelings and our responses to them, such as laughing, sobbing, anxiety and excitement, can also be triggers. (11) This list is not at all exhaustive; in fact, the range of stimuli is so large that hiccups might be considered the common thread between a drunk man, a Parkinson’s disease patient and anyone who watches The Notebook. The one thing that alcohol, (12) some neurological drugs (13) and intense sobbing (14) do have in common is that they exogenously stimulate the hiccup reflex arc. (15) This arc involves the vagal and phrenic nerves that stretch from the brainstem to the abdomen which cause the diaphragm to contract involuntarily. (16) According to Professor Georg Petroianu from the Herbert Wertheim College of Medicine, (17) many familiar home remedies for hiccupping – being scared, swallowing ice, drinking water upside down – interrupt this reflex arc, actually giving these solutions a somewhat scientific rationale. While modern research has successfully mapped out the process of hiccups, their purpose is still unclear. As of now, the hiccup reflex arc and the resulting diaphragmatic spasms seem to be effectively useless. Of the existing theories for the function of hiccups, the most prominent seems to be that they are a remnant of our evolutionary development, (18) essentially ‘vestigial’; in this case, a feature that once served our amphibian ancestors millions of years ago, but now retain little of their original function. (19) In particular, hiccups are believed to be a relic of the ancient transition of organisms from water to land. (20) When early fish lived in stagnant waters with little oxygen, they developed lungs to take advantage of the air overhead, in addition to using gills while underwater. (21) In this system, inhalation would allow water to move over the gills, during which a rapid closure of the glottis – which we see now in hiccupping – would prevent water from entering the lungs. It is theorised that when descendants of these fish moved onto land, gills were lost, but the neural circuit for this glottis closing mechanism was retained. (22) This neural circuit is indeed observable in human beings today, in the form of the hiccup central pattern generator (CPG). (23) CPGs exist for other oscillating actions like breathing and walking, (24) but a particular cross-species CPG stands out as a link to human hiccupping: the neural CPG that is also used by tadpoles for gill ventilation. Tadpoles “breathe” in a recurring, rhythmic pattern that shares a fundamental characteristic feature with hiccups: both involve inspiration with closing of the glottis. (25) This phenomenon strengthens the idea that the hiccup CPG may be left over from a previous stage in evolution and has been retained in both humans and frogs. However, the CPG in frogs is still used for ventilation, while in humans, the evolution of lungs to replace gills has rendered it useless. (26) Based on this information, it seems hiccupping lost its function with time and the development of the human lungs, remaining as nothing more than an evolutionary remnant. However, we cannot discredit hiccupping as having become entirely useless as soon as gills were lost. Interestingly, hiccupping has only been observed in mammals – not in birds, lizards or other air-breathing animals. (27) This suggests that there must have been some evolutionary advantage to hiccupping at some point, at least in mammals. A popular theory for this function stems from the uniquely mammalian trait of nursing. (28) Considering the fact that human babies hiccup in the womb even before birth, this theory considers hiccupping to be almost a glorified burp, intended to remove air from the stomach. This becomes particularly advantageous when closing the glottis prevents milk from entering the lungs, aiding the act of nursing. (29) Today, we reduce hiccups to the disorder and disarray they bring to our day. But, next time you are hit with a bout of hiccups, take a second to find some calm amidst the chaos and appreciate yet another fascinating evolutionary fossil, before you hurry to dismiss them. After that, feel free to eat those lemons or gargle that salty water to your diaphragm’s content. References Sonya Vatomsky, "7 Cures For Hiccups From World Folklore," Mentalfloss.Com, 2017, https://www.mentalfloss.com/article/500937/7-cures-hiccups-world-folklore. Derek Lue, "Indian Superstition: Hiccups | Dartmouth Folklore Archive," Journeys.Dartmouth.Edu, 2018, https://journeys.dartmouth.edu/folklorearchive/2018/11/14/indian-superstition-hiccups/. Vatomsky, "7 Cures For Hiccups From World Folklore". James Mundy, "10 Most Interesting Superstitions In Japanese Culture | Insidejapan Tours," Insidejapan Blog, 2013, https://www.insidejapantours.com/blog/2013/07/08/10-most-interesting-superstitions-in-japanese-culture/. Paul Rousseau, "Hiccups," Southern Medical Journal, no. 88, 2 (1995): 175-181, doi:10.1097/00007611-199502000-00002. Bruno Bordoni and Emiliano Zanier, "Anatomic Connections Of The Diaphragm Influence Of Respiration On The Body System," Journal Of Multidisciplinary Healthcare, no. 6 (2013): 281, doi:10.2147/jmdh.s45443. Christian Straus et al., "A Phylogenetic Hypothesis For The Origin Of Hiccough," Bioessays no. 25, 2 (2003): 182-188, doi:10.1002/bies.10224. Straus et al., "A Phylogenetic Hypothesis For The Origin Of Hiccough," 182-188. John Cameron, “Why Do We Hiccup?,” filmed for TedEd, 2016, TED Video, https://ed.ted.com/lessons/why-do-we-hiccup-john-cameron#watch. Monika Steger, Markus Schneemann, and Mark Fox, "Systemic Review: The Pathogenesis And Pharmacological Treatment Of Hiccups," Alimentary Pharmacology & Therapeutics 42, no. 9 (. 2015): 1037-1050, doi:10.1111/apt.13374. Lien-Fu Lin, and Pi-Teh Huang, "An Uncommon Cause Of Hiccups: Sarcoidosis Presenting Solely As Hiccups," Journal Of The Chinese Medical Association 73, no. 12 (2010): 647-650, doi:10.1016/s1726-4901(10)70141-6. Steger, Schneemann and Fox, "Systemic Review: The Pathogenesis And Pharmacological Treatment Of Hiccups," 1037-1050. Unax Lertxundi et al., "Hiccups In Parkinson’s Disease: An Analysis Of Cases Reported In The European Pharmacovigilance Database And A Review Of The Literature," European Journal Of Clinical Pharmacology 73, no. 9 (2017): 1159-1164, doi:10.1007/s00228-017-2275-6. Lin and Huang, "An Uncommon Cause Of Hiccups: Sarcoidosis Presenting Solely As Hiccups," 647-650. Peter J. Kahrilas and Guoxiang Shi, "Why Do We Hiccup?" Gut 41, no. 5 (1997): 712-713, doi:10.1136/gut.41.5.712. Steger, Schneemann and Fox, "Systemic Review: The Pathogenesis And Pharmacological Treatment Of Hiccups," 1037-1050. Georg A. Petroianu, "Treatment Of Hiccup By Vagal Maneuvers," Journal Of The History Of The Neurosciences 24, no. 2 (2014): 123-136, doi:10.1080/0964704x.2014.897133. Straus et al., "A Phylogenetic Hypothesis For The Origin Of Hiccough," 182-188. Cameron, “Why Do We Hiccup?” Michael Mosley, "Anatomical Clues To Human Evolution From Fish," BBC News, published 2011, https://www.bbc.com/news/health-13278255. Michael Hedrick and Stephen Katz, "Control Of Breathing In Primitive Fishes," Phylogeny, Anatomy And Physiology Of Ancient Fishes (2015): 179-200, doi:10.1201/b18798-9. Straus et al., "A Phylogenetic Hypothesis For The Origin Of Hiccough," 182-188. Straus et al., "A Phylogenetic Hypothesis For The Origin Of Hiccough," 182-188. Pierre A. Guertin, "Central Pattern Generator For Locomotion: Anatomical, Physiological, And Pathophysiological Considerations," Frontiers In Neurology 3 (2013), doi:10.3389/fneur.2012.00183. Hedrick and Katz, "Control Of Breathing In Primitive Fishes," 179-200. Straus et al., "A Phylogenetic Hypothesis For The Origin Of Hiccough," 182-188. Daniel Howes, "Hiccups: A New Explanation For The Mysterious Reflex," Bioessays 34, no. 6 (2012): 451-453, doi:10.1002/bies.201100194. Howes, "Hiccups: A New Explanation For The Mysterious Reflex," 451-453. [1] Howes, "Hiccups: A New Explanation For The Mysterious Reflex," 451-453. Previous article back to DISORDER Next article

< Back to Issue 8 Thinking Outside the Body: The Consciousness of Slime Moulds by Jessica Walton 3 June 2025 Edited by Han Chong Illustrated by Ashlee Yeo Imagine yourself as an urban planner for Tokyo’s public transport system in 1927. Imagine mapping out the most efficient paths through dense urban sprawl, around obstructing rivers and mountains. And imagine meticulously designing the most efficient possible model, after years of study and expertise… only to find your design prowess, 83 years later, matched by a slime mould: a creature with no eyes, no head nor limbs, nor nervous system. Of course, this is anachronistic. For one, the Tokyo railroad system developed over time, not all at once. But it was designed to meet the needs of the city and maximise efficiency. Yet in 2010, when researchers exposed the slime mould Physarum polycephalum to a plate mimicking Tokyo city (with population density represented by oat flakes) it almost exactly mimicked the Tokyo railroad system (1). This became one of the most iconic slime mould experiments, ushering in a flood of research about biological urban design asking the question: Could a slime mould, or other similar organisms, map out human cities for us? But a slime mould doesn’t know what cities are. They’re single-celled organisms; they don’t understand urban planning, or public transport, or humans. They are classified as protists, largely because we’re not sure how else to categorise them, not because they’re particularly ‘protist-y.’ They have no brain and are single-celled for most of their life; so they can’t plan routes, have preferences, or make memories. Right? Except, perhaps they can. Slime moulds are extremely well-studied organisms because they exhibit precisely these behaviours. But how do they think? And what does it mean— to think ? Slime moulds have evidenced memory and learning. The protoplasm network they form is really just one huge cell that eventually develops into a plasmodium, growing and releasing spores. While plasmodial slime moulds (like P. polycephalum ) do this during reproduction, cellular slime moulds (dictyostelids) are able to aggregate together into one cell like this when food is scarce or environments are difficult (meaning they must be able to detect and evaluate if these things are true). Most slime mould behaviour is understood through cell signalling and extracellular interaction mechanisms; responding to chemical gradients using receptors along their membrane, which signal to the cells to move up the concentration gradient of a chemoattractant molecule and away from a chemorepellent. This makes sense; bacteria (like almost every other living organism) do this all the time and it’s the chief way that they make decisions . But what about memory and preferences? What about stimuli beyond the immediate detected chemicals? Slime moulds can, for example, anticipate repeated events and avoid simple traps to reach food hidden behind a U-shaped barrier (2,3). These are beyond input-to-output; something more complex must be happening. Something conscious? Thinking ? The idea of consciousness requiring complex neuronal processes is becoming rapidly outdated as we observe patterns of thinking in organisms that, according to classical definitions, really should not be able to. Using the slime mould as an example, Sims and Kiverstein (2022) argue against the ‘neurocentric’ assumption that an organism must have a brain to be cognisant. Instead, P. polycephalum is suggested to exhibit spatial memory, with cognition being suggested to sometimes include external elements (3). They showed it may undergo simple, habitual learning and hypothesised it uses an oscillation-based mechanism within the cell (3). Similarly, oscillator units along the slime mould’s extending tendrils oscillate at a higher frequency at higher concentrations of food source molecules (like some tasty glucose), signalling to the slime mould to move in that direction (4). Sims and Kiverstein (2022) also posit that the slime trail left by slime mould could function as an external memory mechanism. They found that P. polycephalum avoids slime trails as they represent places it has already been; suggesting a method of spatial memory (4). This was further proved as not a pure input-output response by showing that the avoidance response could be overridden when food is placed on or near slime trails (5). They suggest that the slime mould was able to balance multiple inputs, including oscillation levels and slime trail signals, exhibiting simple decision-making. Should we count these processes as thinking ? This topic is debated by philosophers as much as biologists. Sims and Kiverstein (2022) use the Hypothesis of Extended Cognition, being that mind sometimes extends into the environment outside of the brain and body, to argue firmly that it does count. But at the end of the day, despite understanding the chemical and electrical processes between neurons signalling and the cellular makeup of the brain, we still don’t understand how electrical signals through a series of axons make the leap to complex consciousness. Rudimentary and external cognition pathways, as seen with the slime mould, may also be an evolutionary link in the building blocks to more complex, nerve-based consciousness and decision making (3). We don’t yet understand the phenomena inside our own skulls—how can we hope to define it across all other organisms? Slime moulds clearly have something beyond simple chemical reactions. This begs the question: Aren't our own minds also fundamentally just made of simple chemical reactions? And if a slime mould is able to evaluate multiple inputs, how wonderfully complex must such processes be inside (and outside) a sea anemone, a cockroach or a cat? There’s no way to know what such a consciousness would look like or feel like to our frame of reference. When a slime mould, moving as a network around an agar plate, ‘looks up’ (or an equivalent slime mould action) and perceives unfathomable entities, how does it process that? What does the slime mould think of us? Bibliography 1. Kay R, Mattacchione A, Katrycz C, Hatton BD. Stepwise slime mould growth as a template for urban design. Sci Rep. 2022 Jan 25;12(1):1322. 2. Saigusa T, Tero A, Nakagaki T, Kuramoto Y. Amoebae Anticipate Periodic Events. Phys Rev Lett. 2008 Jan 3;100(1):018101. 3. Sims M, Kiverstein J. Externalized memory in slime mould and the extended (non-neuronal) mind. Cognitive Systems Research. 2022 Jun 1;73:26–35. 4. Reid CR, Latty T, Dussutour A, Beekman M. Slime mold uses an externalized spatial “memory” to navigate in complex environments. Proc Natl Acad Sci U S A. 2012 Oct 23;109(43):17490–4. 5. Reid CR, Beekman M, Latty T, Dussutour A. Amoeboid organism uses extracellular secretions to make smart foraging decisions. Behavioral Ecology. 2013 Jul;24(4):812–8. Previous article Next article Enigma back to

< Back to Issue 2 Building the Lightsaber Some of the most iconic movie gadgets are the oldest ones. For this issue we look at how the lightsaber was brought to life. by Manthila Ranatunga 10 December 2021 Edited by Sam Williams and Tanya Kovacevic Illustrated by Rohith S Prabhu Star Wars : A New Hope was a massive success when it hit cinemas back in 1977. It was a groundbreaking sensation in the field of science fiction movies and computer generated imagery (CGI) in films. What really caught many fans’ eyes was, of course, the lightsaber. Also referred to as a “laser sword”, it is described as “an elegant weapon, for a more civilised age”. Now in our civilised age, we have decided to replicate this dangerous weapon. Lightsabers have already been built by a few enthusiasts. For this piece, we will be focusing on Hacksmith Industries’ lightsaber build from 2020 , as it is the closest to the real deal. Fig. 1. “Hacksmith Industries’ latest lightsaber build”, Hacksmith Industries, 4000° PLASMA PROTO-LIGHTSABER BUILD, 2020. Hacksmith Industries was founded by James Hobson, an engineer who builds real-life versions of film and video game gadgets. After multiple attempts, the team managed to fabricate a retractable, plasma-based lightsaber. However, this is not a real lightsaber, but more-so a protosaber in the Star Wars universe. We will get back to this point later on. How do they work? Let us first talk about how lightsabers work in the movies. A lightsaber consists of three parts: the hilt, the Kyber crystal and the blade itself. Similar to a traditional sword, the hilt is the handle and is made of a durable metal such as aluminium. It contains the Kyber crystal, which is a rare crystal found in the Star Wars universe and is the power source of the lightsaber. Moving onto the more interesting part, the blade is a beam of plasma. Often called “the fourth state of matter”, it is created by heating gas up to temperatures as high as 2,500 degrees celsius. A battery inside the hilt activates the crystal. The produced plasma is then focused through a lens and directed outwards. An electromagnetic field, essentially a force field, generated at the hilt contains the plasma in a defined beam and directs it back into the hilt. The crystal absorbs the energy and recycles it. Hence lightsabers are extremely energy-efficient, allowing Jedi Knights to use them for their whole lifetimes. Fig. 2. Robert W. Schönholz, Blue Lightsaber, c.2016. Of course, the lightsaber breaks the laws of physics. Electromagnetic fields do not work as they do on fictional planets like Coruscant. Energy-dense power sources such as Kyber crystals do not exist in real life, which leads us to the protosaber. In Star Wars lore, a protosaber is a lightsaber with an external power source. It was the predecessor to the lightsaber when Kyber crystals could not be contained inside the hilt. Since real-life high energy sources cannot be squished into the hilt, Hacksmith Industries' lightsaber build is reminiscent of the early protosaber. The build The engineers at Hacksmith Industries settled on liquefied petroleum gas (LPG) as the power source, the same gas used for home heating systems and barbecues. This gas is fed through the brass and copper hilt, and is burnt continuously to keep producing plasma. To form the beam shape of the blade, they incorporated laminar flow of gas. Ever seen videos of “frozen” water coming out of taps like this ? Laminar flow occurs when layers of fluid molecules, in this case LPG, flow without mixing. In this instance, a smooth beam is created. Unlike actual lightsabers, the beam does not return to the hilt to be absorbed. Of course, to be a lightsaber, it has to function like one, too. The plasma is extremely hot, reaching up to 2,200 degrees celsius. Therefore, it can cut through metal and other objects much like we see in the movies. This also means contact with the blade can lead to serious or even fatal injuries. The external power supply is in the form of a backpack, with mounted LPG canisters and electronics for assistance. Overall, the build looks, feels and works like a real lightsaber, which makes it a pretty accurate replica. However, we do not have the Force or ancient Jedi wisdom, so there are some notable imperfections in the design. Fig. 3. “Finished lightsaber build”, Hacksmith Industries, 4000° PLASMA PROTO-LIGHTSABER BUILD, 2020. Colours Lightsabers come in a variety of colours, each reflecting the wielder's moral values in Star Wars canon. Blue, for example, represents justice and protection. Green, blue and red are the most commonly seen in the movies, but lightsabers also come in purple, orange, yellow, white and black. If you did high school science, you may remember mixing bunsen burner flames with salts to produce colours. The same principle applies here; salts can be mixed in with plasma to colour the blade. For example, Strontium Chloride gives a red colour, so you can finally live out your Sith fantasies. Fig. 4. “Lightsaber colours by mixing salts”, Hacksmith Industries, 4000° PLASMA PROTO-LIGHTSABER BUILD, 2020. Improvements The downside of using plasma is that we cannot fight with it. Blades would pass right through each other without clashing. To fix this, a metal rod that can withstand high temperatures, such as Tungsten, could form the blade with a beam of plasma around it. However, this means the lightsaber would not be retractable, which defeats the purpose. To keep the blade coloured, salts have to be continuously fed through the hilt. This can be done with another pressurised canister along with the LPG, although it requires extra space. Despite the imperfections, the protosaber by Hacksmith Industries is the closest prototype to a real-life lightsaber. With constantly evolving technology, we will be able to build a more compact model that more closely resembles those in the movies. Makers all around the world are building cool movie gadgets like the lightsaber, so keep a lookout for your favourite ones. You never know what the nerds may bring! References 1. Amy Tikkanen, “Star Wars”, Britannica, published April 10, 2008, https://www.britannica.com/topic/Star-Wars-film-series. 2, 4, 7. Hacksmith Industries, “4000° PLASMA PROTO-LIGHTSABER BUILD (RETRACTABLE BLADE!)”, October 2020, YouTube video, 18:15, https://www.youtube.com/watch?v=xC6J4T_hUKg. 3. Joshua Sostrin, “Keeping it real with the Hacksmith”, YouTube Official Blog (blog), November 12, 2020, https://blog.youtube/creator-and-artist-stories/the-hacksmith-10-million-subscribers/. 5. Daniel Kolitz, “Are Lightsabers Theoretically Possible?”, Gizmodo, published August 10, 2021, https://www.gizmodo.com.au/2021/08/are-lightsabers-theoretically-possible/. 6. Richard Rogers, “Lightsaber Battery Analysis”, Arbin Instruments: News, published October 3, 2019, https://www.arbin.com/lightsaber-battery-analysis/. 8. Phil Edwards, “Star Wars lightsaber colors, explained”, Vox, published May 4, 2015, https://www.vox.com/2015/5/31/8689811/lightsaber-colors-star-wars. Previous article back to DISORDER Next article

Issue 7: Apex 22 October 2024 This issue surveys our world from above. So come along, and revel in the expansive view - have a read below! Editorial Peaks and Perspectives: A Word from the Editors-in-Chief by the Editors-in-Chief A word from our Editors-in-Chief. Corals A Coral’s Story: From thriving reef to desolation by Nicola Zuzek-Mayer Nicola sheds light on the devastating future faced by our coral reefs, with the effects of anthropogenic climate change far from having reached its peak. Humans vs Pathogens Staying at the Top of Our Game: the Evolutionary Arms Race by Aizere Malibek As nations vie for military supremacy, Aizere covers a microscopic competition between humans and the microbes evolving strategies against our defences. Seeing Space Interstellar Overdrive: Secrets of our Distant Universe by Sarah Ibrahimi Embark on an epic journey as Sarah explores the cosmic mysterious being revealed by NASA's James Webb Space Teloscope. Fossil Markets Fossil Markets: Under the Gavel, Under Scrutiny by Jesse Allen Diving into the wild world of fossil auctions, Jesse prompts us to ask: who is the real apex predator, the T-rex or hedge-fund billionaires? Cancer Treatments Tip of the Iceberg: An Overview of Cancer Treatment Breakthroughs by Arwen Nguyen-Ngo Icebreakers. Follow Arwen as she recounts the countless stories of the giants before us, who carved a path for our cancer research today. Triangles Pointing the Way: A Triangular View of the World by Ingrid Sefton Guiding us through land, seas and screens, Ingrid explores this humble 3-sided shape as a vital tool of modern society and its many fascinating uses. Anti-ageing Science Timeless Titans: Billionaires defying death by Holly McNaughton From billionaire-backed pills to young blood transfusion, Holly traverses the futuristic world of anti-ageing and asks: what happens when death is no longer inevitable? Brain-computer Implants Neuralink: Mind Over Matter? by Kara Miwa-Dale Would the ability to control a computer with your mind bolster possibilities or bring harm? Kara visualises a possible future under the Neuralink implant. Fish Morphology Designing the perfect fish by Andy Shin With a splash of creativity, Andy concocts the ultimate 'Frankenfish' by investigating the traits that allow fish to flourish in their aquatic environments. Commercial Aviation Soaring Heights: An Ode to the Airliner by Aisyah Mohammad Sulhanuddin Settle in and take a round trip with Aisyah through the evolution of commercial aviation, from the secrets of aircraft cuisine to the mechanics of staying afloat.