What's a non-tech thing you find interesting and why?

non-duality: thinking about the big bang scientifically and pondering if it all started with one conscious entity that split into other seemingly separate entities with amnesia* of the fact they are not really separate. I find this interesting because I wonder if I'm one of those entities with amnesia and a bunch of religious stuff I always thought was nonsense might not be.

https://en.wikipedia.org/wiki/Mnesia - slightly tech, and the best name in computer science for a database that's not supposed to forget anything.

Women - they often have experiences and perspectives different from mine, which makes for interesting conversation.

Psychology and human behavior - because people do the damndest things don't they?