There seems to be a more likely explanation than differing levels of selection: biological evolution takes a long time relative to cultural evolution. (Note that the two possibilities aren’t mutually exclusive).
For what definition of society? I have a hard time imagining early humans that aren’t highly social, so you probably mean something different than what came to my mind.
There seems to be a more likely explanation than differing levels of selection: biological evolution takes a long time relative to cultural evolution. (Note that the two possibilities aren’t mutually exclusive).
That would imply that the formation of society reduced the optimal frequency of sex. If so, why?
For what definition of society? I have a hard time imagining early humans that aren’t highly social, so you probably mean something different than what came to my mind.