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Reply #17: I am talking about sheer numbers [View All]

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alarimer Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jan-16-05 12:24 AM
Response to Reply #10
17. I am talking about sheer numbers
There are millions of bacteria in a teaspoon of soil, for example. If you were to extrapolate out to the whole Earth, those numbers would completely dwarf numbers of people, animals, etc. The first organisms were simple single celled organisms. So I am talking about probability when I say that if we find life on other planets, it is likely to be microscopic. Life requires such a special set of circumstances to even exist that it must be exceedingly rare. For those conditions that existed at the dawn of time on this planet to occur again, the likelihood is vanishingly small. Again Carl Sagan is the authority on this issue. He explains all this much better than I can.
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