Presumptuous Philosopher Proves Panspermia

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The presumptuous philosopher (PP) thought experiment lends more credence to the hypothesis which postulates the existence of a larger number of observers than other hypothesis. The PP was suggested as a purely speculative endeavor. However, there is a class of real observer selection effects where it could apply, and one is the possibility of interstellar panspermia (IP)—meaning that the universes where interstellar panspermia is possible will have a billion times more civilizations than universes without IP, and thus we are likely to be in such a universe. This is a strong counterargument against a variant of the Rare Earth hypothesis based on the difficulty of abiogenesis: even if abiogenesis is difficult, IP will disseminate life over billions of planets, meaning we are likely to find ourselves in a universe where IP has happened. This implies that there should be many planets with life in our galaxy, and renders the Fermi paradox even sharper. This means that either the Great Filter is ahead for us and there are high risks of anthropogenic extinction, or that there are many alien civilizations hiding nearby—itself a global catastrophic risk.
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Archival date: 2020-11-20
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