Humans

Josie Ford
Hybrid learning
A man in a hide jerkin and disposable face mask sits knapping flints against the backdrop of an unaccountably large, bright red tractor. Rounding a corner, a 3-metre-high luminous yellow grinning gummy bear suddenly looms over us, from which we flee through a door into a side room where Greater Manchester mayor Andy Burnham is talking soulfully about 100 per cent renewable trams.
Not Feedback’s latest cheese dream – although close – but sure signs we were on the shop floor at New Scientist Live Manchester, as part of our drive to bring the office stationery cupboard to you.
Like many people, Feedback currently finds being in real places with real people a discombobulating experience that requires several deep-breathing exercises and us remembering to wear something on our bottom half. Many attendees in Manchester weren’t actually in Manchester, but watching it all from the safety of their own underpants at home, which brings its own challenges, it turns out. When digital attendees complain that the main stage is freezing, getting someone to turn up the thermostat in the hall doesn’t cut it. Lesson learned as the boundaries between the virtual and physical worlds slowly melt, as indeed the people in the hall did.Advertisement
The truth is out there
“Don’t think of a black hole as a Hoover, think of it as a couch cushion”. Astrophysicist Becky Smethurst – Dr Becky to her legion of YouTube fans – won the prize for the most unexpected metaphor of the event, her point being that you are less likely to get sucked into a black hole than to lose your car keys down the side of one. Or something like that.
Meanwhile, we were delighted to learn from Dallas Campbell and Suzie Imber’s talk on how to leave Earth about the 1638 book The Man in the Moone, written by Church of English bishop Francis Godwin, in which the protagonist flies to the moon in a chariot towed by moon geese. We would take this option, which strikes us as classier than the unspeakably vulgar rockets favoured by today’s billionaire class.
We also now know the current location of the first sandwich in space, what an industrial vacuum does to a marshmallow and how to make a rocket with half an Alka-Seltzer and a 35-millimetre film canister. That’s definitely one not to try at home. For anyone tempted, all the talks are available in the metaverse.
Going nuclear
The 3-metre-high mutant gummy bear was, it turns out, advertising the benefits of nuclear power. Feedback regards this as brave, as we also do the UK Atomic Energy Authority titling a talk “Nuclear Fusion: Forever 30 years away”.
Still, we learn that a gummy bear is about the same size as a uranium fuel pellet, that one fuel pellet produces enough power to drive an electric car 20,000 miles and so a 3-metre-high gummy bear would make enough electricity to power 2 million electric cars for a year in the UK. This makes us happy.
Blowing in the wind
Meanwhile, out in the real world, the real world was still going on. The gummy bear is possibly a more appropriate unit of power for a family magazine than that contained in a tweet from the Victorian Trades Hall Council that Paul Campbell forwards us following our session on “how big is a gigawatt?” in last week’s Feedback.
It celebrates the announcement of 2 gigawatts of wind power capacity to be installed off the Australian state’s coast in the coming 10 years, or as the tweet has it in an accompanying picture: “SH**LOADS OF POWER. SH**LOADS OF JOBS”.
Clue: it wasn’t “shed”. We idly wonder if this is now a unit of power and how many horses it would take to produce it. Around 2.7 million, we make it. They would be a truly magnificent sight riding in the waves, although we do wonder whether any of this counts as clean energy.
Butt out
While our back was turned, we also discover that a portion of Twitter declared 1 to 8 March InverteButt Week in celebration of the backsides of creatures without backbones.
We doubt the world truly needed this, but then again, with past headlines in this august publication such as “Comb jelly videos are rewriting the history of your anus”, perhaps people in glass houses shouldn’t throw… slugs.
This leads us to delve rather more deeply than we might otherwise have done into the lifestyle and morphology of the bristle worm Ramisyllis multicaudata, a detailed study of which, published last year, seems to have been a prime mover of InverteButt Week. The worm lives, with delightful specificity, within sponges in Darwin Harbour, northern Australia. Its single head is buried deep within the sponge, but its body randomly branches out into up to 1000 rear ends that poke hopefully out of it. The gut is continuous throughout all these branches, yet doesn’t seem to process any food, leading to speculation that the worm has “adopted a fungal lifestyle”.
This sounds pleasingly louche, like flying with the moon geese. Even more fun is that, when it comes to reproduction, new heads – complete with brains and eyes – start forming and bud off from the worm’s butts. Cute.
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Living for likes and subscribers can be a poisoned chalice or a dream come true, according to Get Rich or Lie Trying by journalist Symeon Brown

Humans

16 March 2022

By Chris Stokel-Walker

THE influencer economy, fuelled by the ability of social media to instantly reach millions of people, has changed the way we work, rest and play. For some, the rise of this new way to make a living has been a boon – demolishing gatekeepers, minting a new era of celebrities and making millionaires of people who might otherwise be trapped in a dead-end job.
But this has been far from a uniformly good thing for society. As Channel 4 News journalist Symeon Brown uncovers in Get Rich or Lie Trying, the seedy side of social media can be as harmful as it is helpful.
Brown’s reporting sees him go back to the streets of London where he grew up to hear from school friends who have fallen prey to pyramid schemes dressed up as online cryptocurrency investments. He also heads to Los Angeles, where he meets nipped and tucked influencers seeking the perfect body, often ruining their health in the process.
Get Rich or Lie Trying is a chastening read, clearly showing that the lowlights of online fame are as depressing as its highlights are inspiring. Brown races through the influencer economy and the different industries it touches, from the sweatshops churning out poor-quality clothing to ensure that scrolling teenagers can keep up with the latest red carpet looks on a budget, to the surgeons that perform Brazilian butt lifts, a risky procedure where fat is taken from other parts of the body and injected into the buttocks.
At times, Brown hurtles through first-person stories so fast that there is hardly a chance to blink. Those he highlights as exploiting social media – or being exploited by it – sometimes pass by too quickly for us to remember who they are or why we should care. It feels a bit like the relentless hamster wheel of the algorithms that drive social media platforms, and the whole experience can become a bit discombobulating.
At times, you struggle to see who to feel sorrier for: the young woman cajoled into performing a sex act on camera, or the man who is paid to receive insults online. Sometimes, they blur into a catalogue of horrors that becomes difficult to unpick and reflect on.
The book’s stronger sections are those that bring the action closer to home and address some deeper, more systemic issues. A chapter on how social media’s unique voice is often driven by authentic Black voices that are then co-opted and copied by richer, white entrepreneurs without qualms is particularly powerful, and begins to tackle wider problems entrenched in social media.
Elsewhere in the book, the bigger picture is lacking, however. We know, for example, that the drive to achieve physical “perfection” is an issue, and research has made clear both the role that social media platforms play in perpetuating this and the effects of such ideals on mental and physical health. Yet Brown spends surprisingly little time questioning what can be done about the broken bodies and livelihoods left behind in the race to get famous on social media, or even who is to blame.
The book does a much better job of highlighting just how perilous living a life designed to go viral can be – and how quickly the thing that made you famous can become passé. It raises important questions about the value we place on superficial appearances, and how social media all too often encourages us to sacrifice thinking deeply in favour of a neat sound bite.
Overall, Get Rich or Lie Trying is well worth reading – but, like social media, at times it would do well to go deeper and dwell a little longer.

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Don’t Trust Your Gut says data scientist Seth Stephens-Davidowitz. You probably know less than you think about how to be healthy and happy. So, it may be time to ignore your instincts and try self-help by data. Out on 9 June.
Ingela Ihrman
Visit
Rooted Beings can teach us a lot about how to connect with each other, according to this exhibition on plants and fungi. Work from the botanical archives will be shown alongside new art at London’s Wellcome Collection from 24 March.Advertisement

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The Flight of the Aphrodite is a thrilling new sci-fiction novel from S. J. Morden about an eventful mission to Jupiter’s moons. Ship and crew are already at breaking point and then it seems they have uninvited company.

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Rudolph Herzog’s documentary swerves the usual space experts to give an unexpected view of humanity’s efforts to live among the stars, says Simon Ings

Humans

16 March 2022

By Simon Ings

Interstellar travel will need human ingenuity, and a lot of patienceDiscovery Inc.
Last Exit: Space
Rudolph Herzog
Discovery+Advertisement

HOW will people copulate in space? How much antimatter would it take to get to Proxima Centauri b? How much skin would each of us need if we could somehow bioengineer humans to photosynthesise? These are just some of the challenges examined by documentary-maker Rudolph Herzog in Last Exit: Space, a peculiar dash through humanity’s ambition to colonise space.
A traditional documentary might look for answers via the press offices of the European Space Agency or NASA. Not so Rudolph Herzog, whose father, fellow film-maker Werner Herzog, narrated and executive-produced this film. Instead, the film zooms in on those who are dedicated to solving the conundrums of space travel, one challenge at a time.
The result is a charming, yet unfocused and slightly odd, take on space exploration. In Denmark, we meet volunteers at the non-profit organisation Copenhagen Suborbitals who are crowdfunding to build a full-size rocket to send the world’s first amateur astronaut into space.
Meanwhile, in the Negev desert in Israel, citizen scientists from the Austrian Space Forum are putting a not-too-sophisticated-looking Mars spacesuit through its paces.
“The possible future living conditions on Mars are compared to working in an Amazon fulfilment centre”
As well as looking at the technical barriers to moving off-planet, the film ponders whether it is a good idea in the first place. Among the naysayers is space anthropologist Taylor Genovese, who compares the possible future living conditions on Mars to working in an Amazon fulfilment centre. Judith Lapierre, the sole female crew member of the Sphinx-99 isolation experiment in the late 1990s, describes how this study in close-proximity living ended with her alleging sexual harassment against another crew member. It does beg the question, if we can’t get along on Earth, what chance do we have in space?
These issues will only grow with more extreme distances travelled. Interstellar travel will require a ship capable of supporting entire generations of humans. Lapierre’s testimony, says Werner Herzog’s narration, suggests that any such mission will be plagued with “strife, crime and depravity”.
In that case, we might be better off staying put. This, surprisingly, is the advice of a cleric from the Valley of the Dawn community in Planaltina, Brazil, who believe they receive energies from visiting extraterrestrials from the Capella star system. These apparently advise against interstellar travel, which I’m sure NASA would be interested to hear.
Last Exit: Space suffers from its wide-eyed, catch-all approach to the subject; I found the lack of critical analysis frustrating. We are regaled with tales of “the human pioneering spirit”, as though humans were destined to explore and become somewhat less than human when not exploring. This is an opinion not established fact. Many human cultures have made a great success of staying put. Set in false opposition to this are an astonishing assortment of dystopian fantasies: space corporations will control our water! Space corporations will control our air!
Astronaut Mike Foale and astronomer Lucianne Walkowicz provide the documentary with small but penetrating moments of reason. Space is an additional field of human endeavour, they point out, not an escape route from a wrecked home planet. “Do we need to seek our destiny among the stars?”, asks the documentary early on. Let’s hope not.

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By Sam Wong
Zhanna Tretiakova/Alamy
IF YOU eat at fancy places, you may have encountered orbs of sauce or puree, held inside a membrane, that burst in your mouth. Making them involves a little chemistry, but it can be done at home.
Now a staple of modernist cuisine, the spherification technique was patented in 1942 by food scientist William Peschardt and later popularised by chef Ferran Adrià at El Bulli restaurant in north-east Spain in the 2000s.
To try it, you need two special ingredients that can be ordered online. One is a salt called sodium alginate, which comes from brown algae. Alginate is formed … More

A new family tree of apes that lived in the Miocene between 23 and 5.3 million years ago reveals which are our close relatives and which are only distant cousins

Humans

16 March 2022

By Michael Marshall
Dryopithecus, an extinct ape from the MioceneJOHN SIBBICK/SCIENCE PHOTO LIBRARY
A huge study of fossil apes clarifies which extinct species are most closely related to humans. But it can’t resolve one of the most controversial questions in human evolution: whether the last common ancestor we shared with living African apes like chimpanzees lived in Africa or Eurasia.
Primatologist Kelsey Pugh at the American Museum of Natural History in New York looked at apes that lived during the Miocene epoch, between 23 and 5.3 million years ago. She focused on those from the middle … More

The current reference human genome is based on a handful of people but the new Pangenome project will incorporate DNA from hundreds of people all around the world

Humans

16 March 2022

By Michael Marshall
DNA sequence dataShutterstock / Gio.tto
The human genome is being sequenced again – but better. A new project to read DNA from a large number of people has launched, with the aim of sequencing the “pangenome”, a version of the genome that reflects the full genetic diversity of our species.
The human genome, the set of DNA that every person carries in their cells, was first read or “sequenced” between 1990 and 2001. However, this first genome was incomplete because many chunks couldn’t be reconstructed. Geneticists have improved it since, with the last major … More

A psychological study shows people can be over-confident in their ability to perform tasks for which they have no formal training

Humans

16 March 2022

By Christa Lesté-Lasserre
Pilot working through a simulation a simulation exerciseChris Urso/Tampa Bay Times/ZUMA Wire/Alamy
People can be so confident they can teach themselves skills they actually lack – including the ability to land a commercial jet – that they could actually put themselves and other people in serious danger.
“People think, ‘Well, if it really mattered, like in an emergency, I could land the plane’,” says Maryanne Garry at the University of Waikato, in New Zealand. “But … that requires skills that most people just don’t have.”
Garry and her colleagues enlisted 780 volunteers for their psychological study. Half of the study participants were asked to watch an approximately 4-minute-long silent YouTube video showing two commercial pilots landing a plane in a mountainous area.Advertisement
The scientists then gave each participant a hypothetical scenario:
Imagine you are on a small commuter plane. Due to an emergency, the pilot is incapacitated and you are the only person left to land the plane.
They then asked the participants how confident they would feel – on a percentage scale – about responding to the situation.
They found that people who had watched the video were up to 30 per cent more confident in their ability to land a plane without dying, compared to the confidence ratings of people who had not watched the video. But even people who had not watched the video gave themselves an average confidence score of 29 per cent for their ability to land the plane without dying, says Garry.
Some participants who watched the video were asked prior to doing so how confident they were they could land the plane as well as any trained pilot. After watching the video, their self-confidence rose: they were up to 38 per cent more confident that they could perform as well as any trained pilot. In general, men were significantly more confident in their abilities than women were, she adds.

The results were particularly surprising, the researchers say, given that the respondents in general were convinced that landing a plane requires a great deal of expertise. They ranked the required skill level for landing a plane at an average of 4.4 out of 5, says Garry. Trained pilots learn to land planes after hundreds of hours of training and education in physics, engineering, and meteorology, she adds.
Garry says the findings suggest that people “tend to inflate their confidence about certain things” as a result of what she calls a “rapid illusion”, meaning they see images that make them believe they are capable of feats for which they actually have no skill. She adds that the findings suggest this applies to a “disturbing proportion of ordinary people”.
While overconfidence has its benefits – for example, giving people a boost that helps them take on life’s challenges – it can also be detrimental when it puts people’s lives in danger, says Kayla Jordan, also at the University of Waikato.
“It’s pretty surprising that people become more confident they could carry out this highly-specialised feat – while at the same time telling us they know that landing a plane requires a great deal of expertise,” says Jordan.
Journal reference: Royal Society Open Science, DOI: 10.1098/rsos.211977

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