The average prehistoric person could make a nice living in about a fifteen-hour work week.
Fifteen hours a week for subsistence leaves a lot of time for other things
So much time
that maybe the restless ones
to enliven their life, or skill in making or cooking or singing
or very interesting thoughts to think
decided to slope off and hunt mammoths
The skillful hunters then
would come staggering back with a load of meat
a lot of ivory
and a story
It wasn't the meat that made the difference.
It was the story