Hi Perdition,
Once you start down the road of sexual selection, results can be incredible.
One of the marks of Fisherian Runaway Sexual Selection is that a trait is pushed to the limit possible for survival.
The peacock tail, for instance.
With the brain we see a similar push to the limit trait - any further and the life of mother and child is endangered at birth.
But once we start getting larger brains that are capable of planning, forethought, even creativity (all of which are good for survival) sexual selection can lead to a sort of cascade effect, and as art and beauty appreciation advance, it just speeds up the sexual selection.
And selection for creativity also explains the attraction of art and music and dancing. We still see this attraction today.
Enjoy.
we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.
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