I agree that it’s highly likely that we’re not alone, that It is highly likely life has emerged and evolved on other planets as well as Earth. However, that does not mean that the results will be identical, or even very similar.

Based on known principles of evolution — random mutation and natural selection — little grey humanoids are extremely implausible. Nordics from the Pleiades are less plausible still, considering that the term Nordic refers not just to Earth, but to a specific part of Europe.

More plausible extraterrestrial beings have been imagined by thoughtful SF writers, for instance the Martians in H.G.Wells' War of the Worlds, whose morphology combines features of Earth’s cephalopods and primates, but is not identical with either.

Someone who likes sharing factual information and fragments of the big picture

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