Habitable exoplanets are bad news for humanity


By Andrew Snyder-Beattie – The Great Filter is an argument that attempts to resolve the Fermi Paradox: why have we not found aliens, despite the existence of hundreds of billions of solar systems in our galactic neighborhood in which life might evolve?

As the namesake physicist Enrico Fermi [2] noted, it seems rather extraordinary that not a single extraterrestrial signal or engineering project has been detected.

This apparent absence of thriving extraterrestrial civilizations suggests that at least one of the steps from humble planet to interstellar civilization is exceedingly unlikely. The absence could be caused because either intelligent life is extremely rare or intelligent life has a tendency to go extinct. more> http://tinyurl.com/lm2ze3z

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