The Fermi Paradox: Galactic Habitable Zones
Science & Futurism with Isaac Arthur
00:00
The History of the Universe
Every year the average metallicity of newly formed stars would be higher, and the odds of having big rocky planets would rise with it. Eventually life would have emerged somewhere that surface-based life could thrive without being obliterated by some cosmic event or local asteroid. The question is, was this the place where intelligent life forced to merge, or was it luck and in spite of extreme conditions that some unexpected world first became a cradle of civilization? Or even not in spite of but because of such harsh conditions? Time will tell as we improve our ability to appear deep in space and time. As we venture out to claim the stars there should be no zone in our galaxy we are unable to inhabit
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