> A caveman from 200K years ago would have been just as intelligent as any of us here today
In other words, intelligence offers zero evolutionary advantage?
Our big brains are a recent mutation and haven't been fully field tested. They seem like more of a liability than anything, they've created more existential risks for us than they've put to rest.
It looks like quite the disadvantage, in fact. We're killing ourselves and a lot of other stuff in the process.
200k years just isn't much time for significant evolutionary changes considering the human population "reset" a couple times to very very small numbers.