Having an extinction event on a schedule is a seriously low probability event, even if the window is on a million-year scale.
Another little discussed necessity is the third dimension. Birds have shockingly high brain-to-mass ratios. The highest ratio on Earth is not man, it's the turkey vulture. Tree monkeys and oceanic mammals are similar. When the article talks of a stressor, that is another time-sensitive thing.
Why is it so hard to accept that we are alone?
J
Another little discussed necessity is the third dimension. Birds have shockingly high brain-to-mass ratios. The highest ratio on Earth is not man, it's the turkey vulture. Tree monkeys and oceanic mammals are similar. When the article talks of a stressor, that is another time-sensitive thing.
Why is it so hard to accept that we are alone?
J
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