Richard Dawkins · "Why the universe seems so strange" (stage title: Queerer than we can suppose)
"'What is the atom mostly made of?' he thought, 'Space.' He started walking. 'What am I mostly made of? Atoms.' He quickened his pace, almost to a jog now. 'What is the wall mostly made of? Atoms!'" All he has to do is merge the spaces. Then Major General Albert Stubblebine III, commander of US Army intelligence, bangs his nose hard on the wall of his office.
In the summer of 2005, at TEDGlobal in Oxford, Richard Dawkins read this aloud and said it came from an article in Playboy he'd been reading the other day. Laughter. Then the second punch: "I have every reason to think it's true; I was reading Playboy because I, myself, had an article in it." More laughter.
The joke is the key to the whole talk. The general's premise was right: rock is almost entirely empty space; an atom's nucleus is a fly in the middle of a sports stadium, and the next atom is in the next stadium. His mistake was assuming that fact could be cashed out at the scale of hands and walls. Dawkins gave that scale a name: Middle World. Our ancestors made their living among things neither very big nor very small, neither very fast nor very slow, and our brains were built for that. In Middle World, "solid" and "impenetrable" are useful ideas precisely because hands and rocks really can't pass through each other. Evolution never asked us to navigate between atoms or travel near light speed, so quantum theory and relativity make us dizzy — not because we're stupid, but because of the factory settings.
From there he pushes to a bolder claim: for an animal, "really" is whatever its brain needs it to be to help it survive. And at the end he turns the lens on us: we also live in a social Middle World, where the cheapest way to model a person is as an agent with goals and desires — software so successful it keeps overreaching, onto a car that won't start, onto the universe as a whole.
He closes on a question. His title is borrowed from the biologist J.B.S. Haldane: the universe is not only queerer than we suppose, but queerer than we can suppose. Unsupposable in principle, or just beyond a brain stuck in its evolutionary apprenticeship? "I genuinely don't know the answer." Then a suggestion: raise children on computer games where balls go through two slits and objects undergo Lorentz contraction, so the quantum world is blown up to Middle-World scale.
What happened next? Partly held up. "Our intuitions are tuned to medium scales" broadly stands — though the German philosopher Gerhard Vollmer had already named it the "mesocosm" (Mesokosmos) in 1975. But Dawkins drew the boundary in the wrong place. In a 1980 study, over half of the university students tested got the motion of everyday objects wrong — squarely inside Middle World. And a 2013 study showed that when we're seeing and acting, we're a fairly accurate "intuitive physics engine." The line runs between perception-and-action and explicit reasoning, not between scales. The gloomy half of the argument was rebutted by name in 2011 by David Deutsch, another speaker at that same TEDGlobal: any assumption that the world is inexplicable leads only to extremely bad explanations. As for games building intuition, no study has yet shown that what they build is intuition, and a Nature paper claiming "gamers' intuition beats algorithms" at a quantum task was retracted in 2020. And the line that makes the hair on your neck stand up — "Not a single atom that is in your body today was there" — radiocarbon studies later showed that the proteins at the core of your eye lens, and the DNA of your cortical neurons, have been there since you were born.
A few minutes in, Dawkins tells a Wittgenstein story. "Tell me," Wittgenstein asked a friend, "why do people always say it was natural for man to assume that the Sun went 'round the Earth, rather than that the Earth was rotating?" The friend: "Well, obviously, because it just looks as though the Sun is going round the Earth." Wittgenstein:
"Well, what would it have looked like if it had looked as though the Earth was rotating?"— Dawkins quoting Wittgenstein, TEDGlobal 2005
The room laughs. But it's a trap. A rotating Earth looks exactly like a moving Sun. Your eyes weren't fooled; you stuffed a meaning into "looks as though" that it never had. That is the whole talk in miniature: what we call "obvious" is obvious at a particular scale.
Richard Dawkins made his name with The Selfish Gene in 1976, and in 2005 held Oxford's Simonyi Professorship for the Public Understanding of Science (1995–2008). He's an evolutionary biologist, but this talk is barely about biology. It's about why physics makes people dizzy, and the answer he gives is a biologist's answer.
It wasn't new material. In 2003 he gave the first Douglas Adams Memorial Lecture under exactly the same title, "Queerer than we can suppose: the strangeness of science" — which is why a slide shows Steve Grand standing next to Adams himself. Two years later he brought it to TED; a year after that, it became, almost verbatim, the final section of The God Delusion (2006). Among the speakers at that TEDGlobal was David Deutsch, whom Dawkins names in his opening minute for his many-worlds view. Six years later, Deutsch would write the most pointed rebuttal of this talk's conclusion.
He starts with the title. Haldane: "Now, my own suspicion is that the universe is not only queerer than we suppose, but queerer than we can suppose." Then Feynman: quantum predictions are accurate to the equivalent of measuring the width of North America to a hair's breadth — so the theory must in some sense be true — yet its assumptions are so mysterious that Feynman supposedly said, "If you think you understand quantum theory, you don't understand quantum theory." The biologist Lewis Wolpert thinks this is just an extreme case: science, as opposed to technology, "does violence to common sense." Every glass of water you drink probably contains at least one molecule that passed through the bladder of Oliver Cromwell. "It's just elementary probability theory." The room roars.
Then three questions: what makes us capable of supposing anything? Are there things beyond our grasp but not beyond some superior intelligence? Are there things no mind could grasp? Then Wittgenstein, then a rock. Rock is almost all empty space, so why does it feel hard? His answer is the foundation of the talk:
"We are evolved denizens of Middle World, and that limits what we are capable of imagining."— Richard Dawkins, TEDGlobal 2005
Rocks feel hard because rocks and hands can't pass through each other; "solidity" is a useful notion for steering a body through Middle World. Then a run of examples: General Stubblebine and his wall; Galileo telling us heavy and light objects fall together, which we don't believe because in Middle World there is always air friction; our lives dominated by gravity and oblivious to surface tension, while a small insect would reverse those priorities.
Next, via the artificial-life researcher Steve Grand, he goes a layer deeper. We like to think only solid matter is a real thing. But on a plain in Tanzania there's a dune of volcanic ash that walks west at about 17 meters a year, keeping its crescent shape — a wave, not a pile of sand. So are we. He asks you to recall a vivid childhood memory. You were really there, weren't you?
"But here is the bombshell: You weren't there. Not a single atom that is in your body today was there when that event took place."— Dawkins quoting Steve Grand, TEDGlobal 2005
This is the pivot, from "we can't grasp extreme scales" to "everything we see is a model." "Really" isn't a word to use with simple confidence; a neutrino with a brain evolved in neutrino-sized ancestors would say rocks really do consist of empty space.
"'Really,' for an animal, is whatever its brain needs it to be in order to assist its survival."— Richard Dawkins, TEDGlobal 2005
A monkey's brain must simulate a 3D world of branches; a water strider, living on a pond's surface, needs no 3D software at all. A bat hunting insects by echo in the dark needs much the same world model as a swallow hunting by day, so Dawkins speculates that bats might use perceived hues like red and blue as internal labels for echo textures. "There's nothing inherent about red that makes it long wavelength."
He compares Middle World to visible light, a narrow slice of the electromagnetic spectrum outside which we are blind. Probability has a similar narrow band: a marble statue's atoms could all happen to vibrate the same way at once and the hand would wave at us — we just don't live long enough to see it.
Back to the title: unsupposable in principle, or only beyond a brain apprenticed in Middle World? "I genuinely don't know the answer." He suggests raising children on quantum double-slit and relativity computer games. And the last movement turns on us. Scientists officially regard people as machines, yet faced with a child-murderer even the most mechanistic of us says, "Vile monster, prison is too good for you" — like Basil Fawlty thrashing his car for not starting. Why? Because we live in a social Middle World, where modelling a person as a purposeful agent with desires, intentions and blameworthiness is the efficient way to guess what they'll do next. That software is so successful it seizes control where it doesn't belong, as with Fawlty's car, or "millions of deluded people, with the universe as a whole" — a seed for the book he would publish the next year. He ends by putting three questions back on the table, unanswered.
Haldane's line was opening a door to mysticism. It comes from the title essay of Haldane's 1927 collection Possible Worlds, in its final paragraph. The sentence just before reads: "This is one of the reasons why the data of the mystical consciousness can usefully supplement those of the mind in its normal state." The one after: "That is the reason why I have no philosophy myself, and must be my excuse for dreaming." Haldane used "queerer than we can suppose" to make room for something beyond everyday reason; Dawkins borrowed it as the title for a thoroughly naturalistic argument. The dog-and-fatty-acids example comes from the same essay, which names only caproic and caprylic acid, credits the experiment to Buytendijk, and gives the dilution as one part in a million; the third acid, capric, is Dawkins's own extrapolation.
Both Feynman lines were altered. The accuracy comparison is from QED (1985): theory 1.00115965246, experiment 1.00115965221, "If you were to measure the distance from Los Angeles to New York to this accuracy, it would be exact to the thickness of a human hair." Los Angeles to New York, not "the width of North America." More important, the famous quip — "If you think you understand quantum theory..." — has no source anyone has found. What Feynman said in 1965 was:
"I think I can safely say that nobody understands quantum mechanics."— Richard Feynman, The Character of Physical Law, 1965
Dawkins in fact conceded this in print — "there are various versions of this quotation, of which the following seems to me the neatest" — with a footnote pointing to a similar remark attributed to Bohr. On stage, the hedge was gone.
Wittgenstein's "friend" was Elizabeth Anscombe. The story is in her An Introduction to Wittgenstein's Tractatus (1959). The original punchline isn't the question; it's what follows. Anscombe held out her hands palms up, raised them from her knees in a circular sweep, leaned back and put on a dizzy expression. "'Exactly!' he said." Dawkins writes in the book that he tells this story in lectures expecting a laugh, and instead audiences "seem stunned into silence." At TED, they laughed.
The general walked out of a book. The story is from chapter one of Jon Ronson's The Men Who Stare at Goats (2004), which opens: "This is a true story. It is the summer of 1983." In The God Delusion Dawkins credits Ronson directly. Which issue of Playboy he was reading, this page could not establish; treat it as his on-stage claim.
The book version is darker, and its ending brighter. The final section of The God Delusion is called "The mother of all burkas": a woman swathed in black, peering out through a narrow slit, stands for our senses — "What science does for us is widen the window." He puts numbers on Middle World there: from a few kilometres (the view from a mountaintop) to about a tenth of a millimetre (the point of a pin). But the book's last sentence is more hopeful than the talk: "Even better, we may eventually discover that there are no limits."
PARTLY HELD UP · as of 2026-10
"Human intuition is tuned to medium scales" broadly holds — but it wasn't Dawkins's idea first, and he drew the boundary in the wrong place. The gloomy inference that the universe may outrun our understanding has been rebutted by name, and sits badly with the fact that we did master quantum mechanics. Several specifics from the stage (the Feynman quip, the total replacement of our atoms) don't survive.
Priority: 1975. In Evolutionäre Erkenntnistheorie (1975), the German philosopher Gerhard Vollmer introduced the "mesocosm" (Mesokosmos): humanity's cognitive niche, the slice of the real world we can handle through perception and action. The root goes back to Konrad Lorenz's 1941 essay rereading Kant's a priori categories through biology. I found no place where Dawkins cites Vollmer.
The line isn't about scale. In 1980 McCloskey, Caramazza and Green reported in Science that when university students drew the paths of moving objects, "over half of the students, including many who had taken physics courses," showed striking misconceptions: many believed that even with no external force, objects would keep moving in curves — a ball shot out of a curved tube, say, carrying on curving. That is Middle World par excellence, and intuition still failed. But in 2013 Battaglia, Hamrick and Tenenbaum, proposing an "intuitive physics engine" in PNAS, summarized how later work revised that picture: when grounded in concrete perceptual and action contexts, people's physical intuitions are "often very accurate by Newtonian standards," and even in the early studies the majority of subjects typically answered correctly. Put together: evolution gave us a good perception-and-action simulator, not a good explicit theory of physics — not even for Middle World.
The weightiest rebuttal came from that same conference. In chapter 3 of The Beginning of Infinity (2011), David Deutsch restates the argument, attributes it to Dawkins by name, and files it under what he calls the Principle of Mediocrity: on this logic every human ability, including the ability to create new explanations, is parochial, and science must hit a ceiling set by brain biology. His reply:
"Any assumption that the world is inexplicable can lead only to extremely bad explanations."— David Deutsch, The Beginning of Infinity, 2011
His analogy: a flock of birds that flies to another island finds its wings and eyes still work, because they exploit universal laws of aerodynamics and optics; carry the birds a few kilometres up, though, and the wings fail. Biological adaptations have limited "reach." Deutsch's whole book argues that the human capacity to create explanations is the exception.
The games got made; the intuition hasn't been measured. In 2012 the MIT Game Lab released a relativity game in which the speed of light gradually slows down. Australia's Einstein-First project teaches relativity and quantum ideas to schoolchildren: a 2022 study of 54 Year 3 pupils (age 8) found pretest scores of zero, and post-course class averages of 64% and 24%, a gap the authors put down to teacher involvement. There was no control group, and what was measured was answers to concept questions, not intuition. On the quantum side it's more awkward. A 2016 Nature paper, "Exploring the quantum speed limit with computer games" (Quantum Moves), claimed players succeeded where numerical optimization failed; in 2019 Grønlund found a standard algorithm "outperforms all players by a large margin," and in 2020 the authors retracted, citing an error in their code that meant the quantitative results were not valid. One more irony: in 1959 Penrose and Terrell independently predicted that a fast-moving object wouldn't look contracted in a snapshot, but rotated; in 2025 a team using picosecond laser pulses and ultra-fast photography demonstrated the effect in the lab for the first time. A physically faithful "Lorentz contraction game" should show rotation, not the squashing Dawkins imagined.
The bombshell was a dud. In 2005 Spalding, Frisén and colleagues used the carbon-14 that 1950s–60s nuclear tests left in the atmosphere to date human cells, and found that neurons in the occipital cortex "are as old as the individual." In 2008 a Danish team dated the eye lens and concluded that the core lens protein "is never subject to turnover or remodelling once formed" — the only other human tissue then known to be lifelong was dental enamel. So "not a single atom" is literally false. Grand's gist — most of your matter flows through you; you are a pattern rather than a pile of stuff — survives, with the word "most" added.
Where things stand today: science is counterintuitive, true; evolution shaped our intuitions, also true; but neither gets you to a biological ceiling on human understanding. Quantum mechanics itself is the counterexample — we got it with mathematics rather than intuition. Dawkins, in the last line of his book, left that door open too.