"The Singular Electron: A Strange Theory of Universal Uniqueness"
Theoretical physicist John Wheeler proposed a theory that there is only one electron in the universe, moving forward and backward in time, which could explain why electrons and positrons share properties. However, this idea is highly unlikely to be correct, as it does not account for the unequal numbers of electrons and positrons in the universe, and the prevalence of matter over antimatter. Despite its unlikelihood, Wheeler's theory had a lasting impact on physicist Richard Feynman, who explored the concept of positrons as electrons moving backward in time in a subsequent paper.