1940 “One-Electron Universe” idea resurfaces as top Hacker News discussion
Wheeler's playful phone call to Feynman — that every electron and positron is one particle zigzagging through time — draws a fresh wave of physics and philosophy debate.
What to know
- The hypothesis, floated informally by Wheeler in 1940, was never a mainstream theory but inspired Feynman's real, formal backward-in-time positron interpretation used in physics today.
- A 1940s idea about one electron zigzagging through time regained attention purely through a Wikipedia article resurfacing on Hacker News in September 2026, not new research.
- Commenters split between technical objections (missing antimatter, entropy, CP violation) and enthusiasm for the idea's philosophical resonance with fiction like 'The Egg' and 'The Last Question'.
The dispute Whether the one-electron idea (and its 'we are all one' philosophical extensions like The Egg) is a meaningful insight or physically/morally hollow speculation. · positions read across 16 posts and comments
The physics doesn't hold up: missing positrons, entropy, and CP violation argue against it.
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“Even if there were as many positrons as electrons in the universe, I don't get the time-reversed character at a macro level... shouldn't we sometimes see a diffuse cloud of antiparticles in a lab spontaneously condense into a very low…”
abeppu · Hacker News ↗
The idea is a compelling springboard for philosophical/spiritual analogies about unity of consciousness.
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“A twist on this theory: One-Observer Universe... all observers are actually manifestations of a single observer experiencing all of time, space, and every point of view.”
lioeters · Hacker News ↗
The article/idea is simply an enjoyable, almost literary read regardless of scientific merit.
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“Gotta admit, that is probably my favorite Wikipedia article. It reads like a conversation between two stoned teenagers”
krylon · Hacker News ↗
Pushback against the popular 'Egg' framing as morally and spiritually unsatisfying.
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“I go against the grain and say that I dislike the egg. It is spiritually stupid and heretic and morally fake enlightened.”
ralfd · Hacker News ↗
John Wheeler Theoretical physicist
Richard Feynman Theoretical physicistE. C. G. Stueckelberg Theoretical physicistYoichiro Nambu Theoretical physicist
How it unfolded 2 developments, newest first · click a bar or a number to jump articlespostscomments
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Commenters debate the physics and draw philosophical parallels
HN commenters raised objections around positron scarcity, entropy, and CP violation, while others linked the idea to fiction like Andy Weir's 'The Egg' and Asimov's 'The Last Question' and proposed an analogous 'One-Observer Universe'.
“A twist on this theory: One-Observer Universe... all observers are actually manifestations of a single observer experiencing all of time, space, and every point of view.”
— lioeters -
Engage in the thought experiment that you are/were/will be every human for a sec. Is self-harm morally ok? Many would say yes. So "the egg" already gives those people a pass to hurt everyone else in this world because it's a form of self-harm. Great. Now for those who explicitly don't want to self-harm. "The egg" implies that your rebirths happen…
2 more of the top 3 · 16 posts in this stretch
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One-Electron Universe L: https:// en.wikipedia.org/wiki/One-elec tron_universe C: https:// news.ycombinator.com/item?id=4 9776826 posted on 2026.09.20 at 11:28:05 (c=0, p=4)
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it's important to realize that very few physicists accept that idearight up there with everything that will happen in the universe has already happened and it's just a matter of zooming out on the entire time dimension (some use that idea to explain "spooky action at a distance" quantum entanglement and the quantum eraser)but I love how wikipedia…
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Wikipedia article on the hypothesis reaches Hacker News front page
The one-electron universe Wikipedia page, submitted by user pella, gained 98 points and 85 comments, prompting wide discussion of the 80-year-old idea.
“Feynman, I know why all electrons have the same charge and the same mass... Because, they are all the same electron!”
— John Wheeler, physicist, quoted by Feynman · source -
1 outlet One-Electron Universe
first by HN Frontpage, 3d ago
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background
Nambu extends the reversed-world-line idea to all pair creation — Yoichiro Nambu later generalized the concept to all particle–antiparticle production and annihilation, describing it as merely a change of direction of moving particles rather than true creation or destruction.
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Feynman publishes the backward-in-time positron interpretation — Feynman's paper 'The Theory of Positrons' formalized the idea that a positron can be treated as an electron moving backward in time, crediting Wheeler's insight while not adopting the literal single-electron claim.
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Stueckelberg independently devises a similar zigzag model — E. C. G. Stueckelberg separately arrived at a comparable 'zigzag world line description of pair annihilation' around the same time as Wheeler's idea.
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Wheeler proposes the one-electron universe to Feynman by phone — Theoretical physicist John Wheeler called Richard Feynman and suggested all electrons and positrons are manifestations of a single particle tracing one knotted world line through spacetime.
What people are saying 11 voices from 1 site · best of 16 · verbatim
- Is the distinction between 'one particle zigzagging' and 'many particles' measurable, or purely conceptual/semantic?
- Does CP-violation evidence definitively rule out the hypothesis that missing positrons are hidden inside protons?
- Sep 20
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Isn't this proven incorrect by CP-violating processes that also violate T-symmetry (preserving CPT)?
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I go against the grain and say that I dislike the egg. It is spiritually stupid and heretic and morally fake enlightened.
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How meaningful is this actually? Is this a measurable distinction, or a conceptual one with the same semantics?
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That's such a great read.Asimov's 'The Last Question' is another good one that's in line:
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How does this work with QFT? If an electron is just an excitation in a field then it being “one electron” is meaningless.
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Gotta admit, that is probably my favorite Wikipedia article. It reads like a conversation between two stoned teenagers (which, admittedly, a lot of cosmology and quantum physics do, to non-physicists like myself).
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A twist on this theory: One-Observer Universe.It is the hypothesis that all observers are actually manifestations of a single observer experiencing all of time, space, and every point of view. All world lines across spacetime are parts of one single line "like a huge tangled knot" traced out by the one observer.
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CP-violation would appear to rule this out.https://en.wikipedia.org/wiki/CP_violationThe main referenced wiki suggests that the missing positrons are inside protons, but recent a recent LHC experiment asserts CP-violation over baryons.
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My thought is that if there's only one electron, then its probabilistic location at a place and a time, should be impacted by its own energy across all places and times. That quantum gravity comes from generalizing the Schrodinger's equation to include these energies in the phase of the wave function, causing the phase to skew and the probability…
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Even if there were as many positrons as electrons in the universe, I don't get the time-reversed character at a macro level. When leaving antimatter out of the picture, I dimly understand that the arrow of the arises from entropy. If time reversed particles are antiparticles, shouldn't we sometimes see a diffuse cloud of antiparticles in a lab…
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I always loved this as it seems to be a more modern way of interpreting the monad. Could it not be the case that all particles are actually just one thing that is not subject to time and that our reality is a snapshot of a matrix of its different potentials?