Re: A Sample of...One
I am of the opinion that it's entirely possible that life could be rare, but the fact of the matter is that we simply don't have enough data to make any determination on how common intelligent (defined here as tool using and capable of developing advanced technology) life is. After all, we only have the sample size of one biosphere to evaluate the odds with.
It is very likely that the answer may never be discovered. It almost certainly won't be discovered in our lifetimes absent a ground breaking discovery of some nature. Personally, I hope that the universe is filled with countless interstellar civilizations and will be among them, but realistically calling that exceedingly unlikely is a monumental understatement.
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