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For that to make sense you'd have to have credible evidence that evolution moves at a glacial pace. It doesn't.

It responds very quickly to a changing environment.

http://allafrica.com/stories/201501280875.html

It's very silly to draw such a broad conclusion about evolution in general from a single adaptation (most likely involving a single mutation) by a single species.

I was referring to this part of his argument:

>It can cause injury (though serious injury is rare) and even (very rarely) death

keywords: "rare" and "very rarely", although it would be better argument to look at statistics on accidental deaths during risky play, now and in years past if I had time.

The ancestral environment was way more dangerous though