This was my first conclusion to come to mind to rationalize the stupidity of Obama supporters!
Our intelligence and behavior requires optimal functioning of a large number of genes, which requires enormous evolutionary pressures to maintain.
Now, in a provocative theory, a team from Stanford University claim we are losing our intellectual and emotional capabilities because the intricate web of genes which endows us with our brain power is particularly vulnerable to mutations - and these mutations are not being selected against our modern society because we no longer need intelligence to survive.
But we shouldn't lose any sleep over our diminishing brain power - as by the time it becomes a real problem technology will have found a solution making natural selection obsolete.
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