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Or pretty high, if you realize that 7 extinction events were not capable of completely eradicating life.
by rjprins 17y ago
Or pretty high, if you realize that 7 extinction events were not capable of completely eradicating life.
- physcab 17y agoYah. Good point. But if I remember correctly, Bill Bryson's argument was that it TOOK 7 extinction periods for life to evolve to what it is today. So if we're talking about more intelligent life forms than our own, then perhaps that probability is still small. Who knows though.