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> ”We showed up in the last 10% of Earth's (habitable) life.” While the Earth has hosted microbial life for about 3.7 billion years, it was only about 2.3 bill
by Reason077 5y ago
> ”We showed up in the last 10% of Earth's (habitable) life.”
While the Earth has hosted microbial life for about 3.7 billion years, it was only about 2.3 billion years ago (the GOE) that free oxygen started to accumulate in the ocean and atmosphere, making complex multicellular life possible.
So we’re probably in more like the last 20% or 25% of the habitable period.