Posted: Nov 25, 2013 9:52 am
by Veida
Veida wrote:Or at least that genetic factors contribute to that which we call intelligence.

It seems to me that there must be such factors. I don't see any other way that our large brains could have developed. They make birth difficult, they make childhood last a long time, they require an anatomy that interferes with female walking and running, and they require lots of energy. Therefore, they must provide substantial benefits, and moreover, there must be genetic factors that can be selected for. It's unreasonable to think that we got our brains by genetic drift.