I've been using CSS since it first [barely] appeared in IE3, but I've been behind on fully getting to know flex and grid. Didn't know about aspect-ratio at all.
Maybe that says more about the amount of attention I've been paying, but I learned a lot from these examples.
> virtually every other person is radioactive to you.
While you're not wrong, this behaviour is already present - just randomly distributed. Some/many people withdraw, interact with fear, maybe eventually get fed up and take risks, based on guessing-games.
If this research proves fruitful, it will reduce the guesswork a lot, and people can try to find more practical and constructive approaches.
Because of the filesize, this would be right at home on the 512KB club: https://512kb.club/