The One Electron Universe theory proposes that every electron in the universe is the same electron.
Physicist John Wheeler suggested this idea to Richard Feynman in the 1940s. Feynman popularized the idea.
The theory says if an electron was traveling backwards and forwards in time it would cross our timeline multiple times. So the same electron would appear to be many electrons.
This may explain why subatomic particles appears to blink in and out of existence.