I've always taken it as a given that our inconvenient insistence on keeping as many of us as possible alive, at least in the developed countries, has pretty much knocked evolution on the head as far as we're concerned.
Yeah, I have always been confused about that. You meet people who will be able to explain the idea of natural selection to you, and then in the next breath talk about evolution as though it was some kind of magic Life-Force. My biology teacher, for heaven's sake, told us that her son was "more evolved than" her because he was missing a useless joint in his toe.
The 'safety in numbers' gambit seems to me a perfectly valid strategy for a species to take, and the counter mechanisms, tribalism, ethnic tensions, war, seem to be functioning at least adequately.
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