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It is not an assumption, it is a matter of fact


Facts about stellar populations do not translate to facts about alien life. And as there are no facts about alien life, any conclusion on this topic is assumptive and not factual.

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these kind of simulations have been made by many scientists, including Enrico Fermi, and the conclusion was alwayes the same, impossible...


I am unaware of Fermi doing any simulation on this topic.

And the poster child for exobiology, Drake's Equation, shows far from "impossible" results.


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