Quote:
Originally Posted by Superman
While life is quite possible and may spring up often on planets, something tells me that hundreds of millions of years of relative environmental tranquility may be exceedingly rare.
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Yes, the odds are exceedingly low. But if the odds are 1 in a billion, then there are 160 planets in our galaxy with life. If there are 100 billion galaxies, a lower estimate, then there are 16 trillion planets with life in the universe.
