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One electron in the universe

A positron can be modelled like an electron that is travelling backwards in time. John Wheeler (in a phone conversation with Nobel laureate Richard Feynman) proposed that this could mean all electrons and positrons in the universe could in fact be the same particle, just bouncing back and forth across time, interweaving with itself across time and space.

This would explain why electrons all look identical (they have the same mass and charge). it’s an elegant and poetic concept, and almost certainly not true.

Categories: Physics & chemistry Sciences

The Generalist

I live in Auckland, New Zealand, and am curious about most things.

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