All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA—and it likely lived on Earth only 400 million years after its formation.
it’s ~twice the time between us and our last common ancestor with platypuses (160mya)
That’s a good point and it really puts deep time in perspective. But it still points the no life / life transition being extremely easy? Doesn’t it? In two to three hundred myas we had a jump from barren hell scape to single cell life. That makes if look like life must be pretty easy to get started or am I missing something? Not a biologist so I suspect I’m missing something.
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it’s ~twice the time between us and our last common ancestor with platypuses (160mya) That’s a good point and it really puts deep time in perspective. But it still points the no life / life transition being extremely easy? Doesn’t it? In two to three hundred myas we had a jump from barren hell scape to single cell life. That makes if look like life must be pretty easy to get started or am I missing something? Not a biologist so I suspect I’m missing something.
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