Researchers Rethink the Ancestry of Complex Cells
quantamagazine.org
quantamagazine.org
I approve of this interpretation.
You don't converge when each next term is astronomically bigger than the previous one.
It appears, already, that amino acids and RNA were inevitable, and RNA turns out to suffice for the needed enzyme operations. RNA that replicates other RNA arises spontaneously. Once you get two of them, the seas fill with variations of everything they encounter.