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Life started on Earth really fast after it was physically possible for it to exist on the surface. So either Earth was astronomically lucky, or forming life was
by andrewflnr 3y ago
Life started on Earth really fast after it was physically possible for it to exist on the surface. So either Earth was astronomically lucky, or forming life was easy (on the scale of a couple hundred million anyway), or Earth got seeded really quickly by the next passing rock. The first is unlikely, almost by definition, and the other two both imply life is common.