Quote:
Originally Posted by Takeda Shingen
No, that's not exactly true. Natural selection rewards overall fitness to survive. That is, the most adept in their environment are the ones that pass on their genes to the next generation. All, even those least able to thrive are physically capable of reproduction, especially in the male sex, where the physical difficulties of gestation are not endured.
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You totally left out the part about competing for the available mates in order to reproduce. Natural selection left unhampered by civilization would've eliminated the least able to thrive in favor of their competition, those fit to survive.
You simply can't have natural selection in a society that medically can save almost anyone with any malady (at any cost), because they will eventually add to the gene pool.
...of course they now have artificial means for those who fail to 'naturally' mate.