Sep 13, 2013 12:00
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Comments 19
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Natural selection, to my mind, has two compenents. The first is adaptation to the environment and the second is sexual selection.
I’m far, far from convinced that humans are now immune to the influences of the environment (including our own culture.) Even a 95% success rate in converting babies into grandchildren still leaves some environmental pressures.
I’m certain that sexual selection is still a potent source of evolutionary change. It’s perhaps very strongly influenced by culture.
The two factors seem to me to also be interconnected in many ways.
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The book has a takedown of all the theories about the causes.
I've just found out that there's a revised paperback edition.
I'm surprised that the rate of sadism is as low as 25%, but they only tested for pleasure in killing insects. It wouldn't surprise me if liking to hurt mammals (and possibly birds) is a separate but overlapping motivation.
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