A passing line of dialogue in TENET led me to read up on
@ProfFeynman's theory that positrons are actually electrons moving backward in time and now my brain is buzzing. I feel like I understand both the universe (and TENET) a little more tonight.

The first turnstile sequence in TENET actually illustrates this concept dramatically: two individuals appear to emerge from the doors, but it's actually the same person entering and exiting at the moment their entropy is reversed. Our linear POV creates the illusion of two men.

Aaaaaand now I've hit upon the part where there might only be one electron in the whole universe (which explains in the bizarre fact that _all_ electrons have _identical_ properties) and I'm low-key freaking out. #SCIENCE