On average, people get less criminal as they get older, so that would point towards human kindness increasing in time. On the other hand, they also get less idealistic, on average, so maybe a simpler explanation is that as people get older, they get less active in general.
When I read Tsvi’s OP, I was imagining something like a (trans-/post- but not too post-)human civilization where everybody by default has an unbounded lifespan and healthspan, possibly somewhat boosted intelligence and need for cognition / open intellectual curiosity. (In which case, “people tend to X as they get older”, where X is something mostly due to things related to default human aging, doesn’t apply.)
Now start it as a modern-ish democracy or a cluster of (mostly) democracies, run for 1e4 to 1e6 years, and see what happens.
When I read Tsvi’s OP, I was imagining something like a (trans-/post- but not too post-)human civilization where everybody by default has an unbounded lifespan and healthspan, possibly somewhat boosted intelligence and need for cognition / open intellectual curiosity. (In which case, “people tend to X as they get older”, where X is something mostly due to things related to default human aging, doesn’t apply.)
Now start it as a modern-ish democracy or a cluster of (mostly) democracies, run for 1e4 to 1e6 years, and see what happens.