2022

Nobel Prize in Physics

Even Einstein's Intuition Lost

Alain Aspect · John Clauser · Anton Zeilinger

When Einstein called entanglement 'spooky action at a distance,' he meant it as an insult — a sign that quantum mechanics must be incomplete, that hidden variables lurking beneath the theory would eventually restore good classical sense to the universe. John Bell's 1964 theorem offered a way to test that hope, and Clauser built the first real apparatus to try it in 1972, finding against Einstein. Aspect closed the main loopholes through the 1980s with faster, cleaner experiments; Zeilinger then spent the 1990s and 2000s teleporting quantum states and entangling photons across Vienna. By the time the three of them shared the Nobel, the conclusion had the texture of a geological fact: local hidden variables do not exist, the universe really is as strange as it looks, and the strangeness is a resource. Quantum cryptography, which sends keys that cannot be intercepted without disturbing them, and quantum computing, which exploits superposition to run calculations impossible on classical machines, both rest on a foundation these three built by trusting an experiment over an intuition — even Einstein's.

Nobel Prize in Chemistry

Chemistry That Clicks Inside a Cell

Carolyn Bertozzi · Morten Meldal · K. Barry Sharpless

K. Barry Sharpless — already a laureate in 2001 — had grown tired of the way organic chemists built molecules: slow, finicky, full of protecting groups and unhappy byproducts. Around 2001 he proposed click chemistry, the idea that synthesis should proceed like a seatbelt clicks: fast, specific, reliable, and forgiving of the mess of real conditions. Morten Meldal independently discovered the copper-catalysed azide-alkyne cycloaddition around the same time, which turned out to be the perfect click reaction — efficient enough for industrial use, precise enough for biology. The elegant difficulty was that copper is toxic to cells, so living organisms were off limits. Carolyn Bertozzi solved this by engineering strain-promoted reactions that click inside living systems without metal catalysts at all, allowing researchers to attach fluorescent labels and probes to sugars on the surface of cancer cells without killing the cell first. That is what bioorthogonal chemistry means: chemistry that proceeds in water, at body temperature, inside a living thing, as if the organism barely noticed. A world without it is one where studying the real-time chemistry of a tumour still requires killing the tumour first.

Nobel Prize in Physiology or Medicine

A Finger Bone Names a New Human

Svante Pääbo

Ancient DNA tends to survive the way ancient buildings do: in fragments, contaminated, with the worst damage in exactly the places you most want to read. When Svante Pääbo began working with Neanderthal bones in the 1990s, the consensus was that extracting a legible genome was essentially impossible — the sequences were short, bacterial contamination was overwhelming, and the chemistry of post-mortem damage made authentic signal nearly impossible to distinguish from noise. Pääbo ignored the consensus, developed new extraction protocols, built new contamination controls, and by 2010 had produced a draft of the Neanderthal genome. What it revealed was startling: Neanderthals had not simply been replaced by modern humans, they had in many places intermingled with them, and their DNA persists in the genomes of most people alive today outside Africa, typically at levels of one to four percent. He then found the Denisovans — a separate archaic lineage, known at first from a single finger bone and two molars from a Siberian cave — whose genetic traces survive in populations across island Southeast Asia and the Pacific. Pääbo had given prehistory a new class of evidence, one that is far less ambiguous than a pottery shard.

Nobel Prize in Literature

An Autopsy Performed on Herself

Annie Ernaux

Annie Ernaux grew up in a family that ran a café-grocery in a Norman town, passed through the French educational system on a scholarship that felt, for years, like an act of violence on the class she had left, and eventually began to write it all down with the detachment of someone performing an autopsy on herself. Her books — slim, declarative, stripped of the upholstery that protects both author and reader — take on abortion, grief, obsessive desire, and the slow dying of a parent, and they do it in a prose so controlled that the emotion arrives not from any word but from the gap between what is said and what is not. The Swedish Academy cited 'courage and clinical acuity'; the clinical acuity is the courage — to write from inside an experience without blinking, without redemption arcs, without the reassurance that things turn out all right. Her work endures because it describes states that most writers know to be true and most writers refuse to say plainly.

Nobel Peace Prize

Inconvenient to Power, All Three

Ales Bialiatski · Memorial · Center for Civil Liberties

When the Norwegian Nobel Committee announced the 2022 Peace Prize, one of the recipients was in a Belarusian prison, where he had been since 2021 after decades of documenting human rights abuses under Lukashenko; Ales Bialiatski had previously been imprisoned in 2011 for the same offence of noticing things the state preferred unnoticed. Memorial, the Russian human rights organisation that had spent thirty years building an archive of Soviet repression and post-Soviet political violence, was being dissolved by court order in Moscow at almost the exact moment the Nobel was announced. The Ukrainian Centre for Civil Liberties, founded in 2007 to advance democracy and the rule of law, was by then engaged in the more urgent work of documenting Russian war crimes in real time. The committee did not have to explain its reasoning at any length: the three recipients were simply the people whose governments most wanted them to stop. That shared quality — being inconvenient to power — was the prize itself.

Sveriges Riksbank Prize in Economic Sciences

Why a Rumour of Failure Causes One

Ben Bernanke · Douglas Diamond · Philip Dybvig

The structural oddity at the heart of banking has always been that banks borrow short — from depositors who can demand their money back tomorrow — and lend long, to businesses and homeowners who will not repay for years. Diamond and Dybvig formalised this in a 1983 paper that explained why that mismatch makes banks permanently fragile: if enough depositors believe a bank will fail, their withdrawals will cause exactly the failure they feared, making the belief self-fulfilling. The model was elegant but might have remained academic had Bernanke not published empirical work the same year showing that the bank failures of the 1930s were not just symptoms of the Great Depression but contributors to its depth and length — because when banks failed, they destroyed the accumulated credit knowledge, the relationships and assessments, that only a functioning lending network holds. The timing of the 2022 prize was either coincidental or ironic, since Bernanke had spent 2008 applying these exact lessons as chairman of the Federal Reserve, marshalling the tools Diamond and Dybvig's work implied to prevent the financial crisis from becoming a second depression.

Ig Nobel Prize in Applied Cardiology

Two Hearts Fall Into Step

Eliska Prochazkova

Eliska Prochazkova and colleagues fitted speed-dating participants with heart-rate monitors and filmed the sessions, then measured not just what people said about their attraction but what their cardiovascular systems were quietly doing in the background. The finding was that mutual attraction produced synchronised cardiac rhythms between partners — not just a racing pulse in isolation, but a measurable alignment of one person's heartbeat with another's, happening in real time while they discussed whatever speed-daters discuss. The romantic conclusion writes itself, but the scientific conclusion is slightly less flattering: the human heart, it turns out, is not metaphorically responsive to other people but physiologically entangled with them, broadcasting its preferences at approximately 60 to 80 beats per minute and entirely without the owner's permission.

Ig Nobel Prize in Literature

The Sentence That Won't Let Go Yet

Eric Martínez

The reason legal documents are difficult to read has been debated for centuries, with theories ranging from professional mystification to the sheer density of concepts the law must carry. Eric Martínez and colleagues applied cognitive linguistics to the problem and discovered that the answer is neither conspiracy nor inevitability but structure: legal prose relies heavily on centre-embedded clauses — a noun phrase, an interrupting subordinate clause about the noun phrase, and then the continuation of the original sentence — in ways that push ordinary working memory well past its comfortable limits. A centre-embedded sentence requires the reader to hold the beginning in suspension while the middle is digested and only then deliver the end, which is precisely the kind of cognitive juggling that makes prose feel impenetrable. This had always been true; it simply took a randomised comprehension study to confirm it. The devious-lawyer hypothesis, Martínez noted, was not investigated, and remains officially open.

Ig Nobel Prize in Biology

Constipation Ruins a Scorpion's Chances

Solimary García-Hernández

Scorpions, as a group, have survived for roughly 430 million years and are among the more robustly adapted animals on earth — capable of slowing their metabolism to near-zero, surviving nuclear test sites, and living for months without food. It turns out, however, that constipation is a meaningful setback. Solimary García-Hernández and colleagues found that scorpions managing accumulated waste in their abdomen performed worse in courtship and had reduced reproductive success — a discovery that required patient observation, dedicated measurement, and a research question that most biologists had apparently declined to ask first. The study also noted that some scorpions under prolonged stress simply shed the tail that contains the issue, which solves one problem and creates a different, longer-term one. Science, not for the first time, declines to speculate further.

Ig Nobel Prize in Medicine

Ice Cream, Administered as Medicine

Marcin Jasiński

Oral mucositis — the inflammation and ulceration of the mouth lining that afflicts children undergoing chemotherapy — is one of those treatment side effects that compounds the original misery in a way that feels gratuitously unfair. Marcin Jasiński and colleagues ran a randomised controlled trial to test whether ice cream, applied during infusions, would reduce the pain; it did, outperforming standard care by a meaningful margin. The ice cream works by local vasoconstriction, reducing the delivery of chemotherapy to the delicate mucosa during the period of peak drug concentration, which is a somewhat less appealing way to describe what is, in practical terms, a valid medical intervention involving ice cream. That this required a clinical trial, rather than simply becoming practice the moment someone thought of it, says something about how medicine decides what counts as evidence — and what counts as too silly to investigate.

Ig Nobel Prize in Physics

Ducklings Surf Their Mother's Wake

Frank Fish

The name Frank Fish, investigating the fluid dynamics of swimming ducks, is the kind of coincidence that makes you wonder whether people occasionally drift toward their subjects, or whether the universe has a loose editorial hand. Fish and colleagues found that ducklings following their mother in a line are not simply trailing her wake — they are surfing it. The mother's bow wave creates a pressure field that, at the correct spacing, generates lift for the duckling immediately behind her; that duckling's own wave then reinforces the pattern for the next in line, passing energy forward through the formation. The result is that each duckling after the first expends significantly less effort than it would swimming alone. The line of small ducks proceeding with such apparent innocence across the pond turns out to be a finely tuned piece of cooperative hydrodynamics, although the ducks remain unaware of this and show no particular gratitude.

Ig Nobel Prize in Economics

Luck Compounds Better Than Talent

Alessandro Pluchino

Alessandro Pluchino and colleagues built an agent-based simulation of careers in which individuals were assigned both a fixed talent score and random luck events, then ran it forward over working lifetimes to see who came out on top. The most successful individuals, almost without exception, were not the most talented — they were the ones who had been in the right place at the right moment often enough for the luck to compound. The simulation is not especially surprising to anyone who has watched careers unfold at close range, but it has the considerable advantage of being formal, reproducible, and therefore citable. Pluchino noted that this has implications for how organisations should allocate resources; the paper has been shared most enthusiastically, one suspects, by people who consider themselves talented and have theories about why that hasn't shown up yet.

Ig Nobel Prize in Safety Engineering

A Moose-Shaped Dummy for Nordic Roads

Magnus Gens

Crash-test dummies are designed to represent the human body in a vehicle collision, which means they are sized and weighted to human proportions — a reasonable assumption until one considers that moose, in the countries where they share roads with cars, do not observe lane discipline and do not yield. A collision with a moose is biomechanically unlike a collision with another car: the animal's long legs place the body mass above the bonnet line, so the torso arrives through the windscreen rather than the bumper, which is the part the standard dummy was built to address. Magnus Gens built a moose dummy — instrumented, weighted to the correct mass distribution, and shaped with an accuracy that gives it a distinctly melancholy silhouette — so that crash engineers could simulate what Swedish and Finnish roads have been serving up for decades. It is, by a wide margin, the largest crash-test dummy in existence, and the one most likely to be mistaken for something else in the car park.

Ig Nobel Prize in Art History

What the Maya Painted on Their Enema Pots

Peter de Smet · Nicholas Hellmuth

Peter de Smet and Nicholas Hellmuth examined a genre of ancient Maya ceramic art that art historians had tended to pass over with a certain briskness: painted and modelled scenes depicting ritual enemas, in which participants administer intoxicating or hallucinogenic liquids to themselves by the least conventional available route. Their multidisciplinary study took the imagery seriously as evidence, arguing that the Maya elite employed enemas as a deliberate means of delivering fermented and psychoactive preparations into the bloodstream, bypassing the stomach and the unpleasant business of vomiting that oral consumption of such substances tends to involve. The pharmacology is sound, the archaeology is careful, and the pottery, once one knows what one is looking at, is difficult to unsee. That a civilisation chose to record its ritual pharmacology on its finest crockery is either a triumph of candour or a lasting warning about the durability of one's decorative choices.

Ig Nobel Prize in Engineering

How Many Fingers Does a Knob Need

Gen Matsuzaki · Kazuo Ohuchi · Masaru Uehara · Yoshiyuki Ueno · Goro Imura

Gen Matsuzaki and colleagues at the Chiba Institute of Technology set out to answer a question that industrial designers had apparently been settling by intuition: when a person turns a cylindrical knob, how many fingers do they use, and how does that number change as the knob grows larger? They tested knobs across a wide range of diameters and counted. The finding is orderly and rather satisfying — people use two fingers for the smallest knobs and recruit more as the diameter increases, adding a third finger, then a fourth, in a predictable progression until, for the largest knobs, the whole hand is engaged. It is the kind of result that sounds trivial until one realises that someone designing a control panel, a medicine bottle, or a door handle needs precisely this number and had, until now, been guessing. The knobs offered no resistance to being studied.

Ig Nobel Prize in Peace

The Mathematics of a Well-Timed Lie

Junhui Wu · Szabolcs Számadó · Pat Barclay · Bianca Beersma · Terence Dores Cruz · Sergio Lo Iacono · Annika Nieper · Kim Peters · Wojtek Przepiorka · Leo Tiokhin · Paul Van Lange

Junhui Wu and a large international team addressed one of the quieter dilemmas of social life: gossip is a mechanism by which groups share reputational information and enforce cooperation, but a gossiper must constantly decide whether honesty serves them or whether a strategic falsehood serves them better. They built a game-theoretic model specifying, given the incentives at play, when a rational gossiper should tell the truth and when they should lie — turning the intuitive calculus of the rumour mill into a set of formal conditions. The result is a piece of mathematics describing behaviour that most people conduct with no mathematics at all, generally at parties. Whether anyone will consult the algorithm before deciding what to say about a colleague is doubtful, but it now exists, and the incentives it describes were quietly operating long before anyone thought to write them down.

Turing Award

One Memo Wired the World Together

ACM A.M. Turing Award

Robert Metcalfe

In May 1973, Robert Metcalfe wrote a memo at Xerox PARC describing a system for connecting computers to share a laser printer, sketching a design he would later call Ethernet after the Victorian physics concept of a luminiferous ether permeating space. The design used coaxial cable, controlled collisions between data packets, and a protocol for backing off and retrying that made the network self-managing in a way that impressed everyone who understood it. What followed was less inevitable than it appears in retrospect: Xerox was not primarily interested in selling networking equipment, so Metcalfe left, co-founded 3Com, and spent the better part of a decade persuading computer manufacturers that their machines should all speak the same protocol. The standardisation battle — which Ethernet won over competing schemes from IBM and others — turned out to matter as much as the invention itself. By the time the world had billions of networked devices, nearly all of them were doing it Metcalfe's way.

Fields Medal

Four Proofs, One Ceremony Moved by War

Fields Medal

Hugo Duminil-Copin · June Huh · James Maynard · Maryna Viazovska

The International Congress of Mathematicians had been scheduled for St Petersburg; Russia's invasion of Ukraine in February moved it to Helsinki, and the ceremony acquired a political undertone the prizes themselves more than transcended. Hugo Duminil-Copin had spent his career on phase transitions — the critical points where materials suddenly change character — settling conjectures about percolation and the Ising model that had resisted physicists for decades by treating them as rigorous mathematical objects. June Huh arrived at mathematics late, having spent his twenties as a poet, and proved several long-standing combinatorial conjectures using algebraic geometry that he had largely taught himself; his work suggested a deep connection between combinatorics and the topology of algebraic varieties that no one had anticipated. James Maynard made prime gaps smaller than anyone thought possible, showing infinitely many pairs of primes lie within 600 of each other — a vast improvement on previous bounds, achieved with unexpectedly elementary methods. Maryna Viazovska proved that the E8 lattice in eight dimensions and the Leech lattice in twenty-four dimensions give the densest possible sphere packings in those spaces, resolving problems that had been open for decades in the two dimensions where mathematicians had the strongest hunches and the most reason to despair of proving them.

Lasker Award (Basic Medical Research)

A Cell's Scaffolding Turns Out to Talk

Albert Lasker Basic Medical Research Award

Richard O. Hynes · Erkki Ruoslahti · Timothy A. Springer

For most of the twentieth century, cells were thought of as largely self-contained units whose relationship with the tissue scaffolding around them — the extracellular matrix — was essentially structural, a matter of support rather than signalling. Richard Hynes, Erkki Ruoslahti, and Timothy Springer changed that picture through the 1980s and 1990s by characterising integrins, a family of cell-surface receptor proteins that span the membrane and connect the matrix outside to the cytoskeleton within. What they found was that integrins are not just anchors but antennae: they transmit mechanical and chemical signals in both directions, regulating how cells move, divide, and survive. That bidirectional sensing turned out to underlie wound healing, the migration of immune cells to sites of infection, the formation of blood clots, and — crucially — the ability of cancer cells to detach from a primary tumour and colonise distant tissue. The practical consequences arrived in the clinic: integrin-blocking drugs are now used in cardiology to prevent clotting after arterial procedures, in the treatment of multiple sclerosis, and in oncology, with several more in late-stage trials.

Lasker Award (Clinical Medical Research)

The Fetus Was Already in the Blood

Albert Lasker Clinical Medical Research Award

Yuk Ming Dennis Lo

The standard methods for testing a fetus for chromosomal abnormalities in the 1990s — amniocentesis and chorionic villus sampling — both worked by extracting cells from inside the uterus with a needle, and both carried a small but real risk of miscarriage, which meant the test itself posed a threat to the pregnancy it was meant to assess. Dennis Lo, working in Hong Kong, made the observation in 1997 that fetal DNA circulates freely in the mother's blood during pregnancy, shed from the placenta, and present in quantities large enough to sequence. The implications took time to act on, because isolating the fetal fraction from the far larger maternal signal required sequencing technology that was only becoming affordable in the late 2000s. By the early 2010s, non-invasive prenatal testing based on Lo's discovery had entered clinical use, and it is now the standard first-line screen for Down syndrome, trisomy 18, and other chromosomal conditions in most of the developed world. The blood draw replaced the needle, and the risk of miscarriage from screening dropped to zero.

NIF achieves nuclear fusion ignition

More Energy Out Than In, At Last

The National Ignition Facility at Lawrence Livermore had been working toward fusion ignition since the 1990s, building a stadium-sized complex of 192 laser beams designed to compress a pellet of hydrogen fuel so rapidly and intensely that the nuclei would fuse rather than merely collide. The engineering involved is unreasonable by any ordinary measure: the lasers must fire simultaneously within picoseconds, the pellet must be spherically uniform to tolerances measurable in nanometres, and the whole process is over in a few nanoseconds. On 5 December 2022, the facility delivered 2.05 megajoules of laser energy to a fuel capsule roughly the diameter of a pencil eraser, and the resulting fusion reaction released 3.15 megajoules — more energy out than in, for the first time in more than sixty years of trying. The margin was not enormous, and the energy needed to power the lasers themselves was far larger still, which is the engineering problem that remains. But the physics constraint — the question of whether controlled fusion ignition was even achievable — had an answer at last, and the answer was yes.

JWST detects CO₂ in an exoplanet atmosphere

Reading a Faraway World's Air

WASP-39 b is a hot gas giant orbiting a sun-like star about 700 light-years away — tidally locked, scorchingly hot, emphatically not somewhere life is expected. It became historically significant in August 2022 anyway, when the James Webb Space Telescope's Near Infrared Spectrograph produced a transmission spectrum of its atmosphere detailed enough to show an unambiguous absorption feature from carbon dioxide: the first confident detection of CO₂ in any atmosphere beyond our own solar system. The finding mattered less for what it said about WASP-39 b, which is not a promising candidate for anything, than for what it demonstrated about the telescope — that Webb's infrared sensitivity and spectral resolution were sufficient to read the atmospheric chemistry of distant worlds in a single transit observation, far exceeding expectations. It was, in the language of the team that published it, a proof of concept, which is a modest phrase for the moment when a new kind of astronomy became possible.

James Webb Space Telescope releases first science images

Three Decades Waiting, Then Five Images

The James Webb Space Telescope had been three decades in the making, had cost roughly ten billion dollars, had suffered serial delays and a near-cancellation, and had launched on Christmas Day 2021 to universal anxiety about the 344 single points of failure that had to work correctly at distances too great to repair. On 12 July 2022, NASA released five images: a gravitationally lensed deep field of galaxy cluster SMACS 0723 showing thousands of galaxies at distances previously inaccessible; the towering infrared cliffs of the Carina Nebula's star-forming regions; the nested shells of the Southern Ring Nebula; the five galaxies of Stephan's Quintet caught mid-collision; and, for scientific measure, the transmission spectrum of an exoplanet atmosphere. The images were, by wide agreement, of a quality no one had quite believed to expect. After everything — the delays, the overruns, the debates about whether the money could have been better spent — the telescope worked, flawlessly, on the first attempt.

ChatGPT launches

A Hundred Million Users, Two Months In

OpenAI had been releasing language models for years — GPT-2 in 2019, GPT-3 in 2020 — to considerable interest from researchers and developers and relatively little from anyone else. On 30 November 2022 they released ChatGPT as a free research preview, a version of GPT-3.5 fine-tuned with reinforcement learning from human feedback to hold a conversation rather than merely complete a prompt, and the internet's relationship with text generation changed within a week in ways that newsletters and opinion sections are still working through. One million users signed up in five days; 100 million within two months, making it the fastest-adopted consumer application on record. The model was not the most powerful available — GPT-4 was already in development — and the underlying technique was not new. What was new was the interface: a conversation that felt, to an ordinary person with no knowledge of machine learning, like talking to something that understood what they meant. Whether it does understand, in any meaningful sense, is a question that the philosophers are still arguing about; the product managers did not wait for an answer.