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.
    • showmeyourkizinti@startrek.website
      8·
      2 months ago

      Yes but, this was maybe 300 million years after Theia smashed the proto-earth half destroying the planet and forming the moon. The whole planet must have been sterilised by that right? So it’s pretty damn quick isn’t?

        • showmeyourkizinti@startrek.website
          3·
          2 months ago

          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.