No living entity known today generates its complexity from scratch.
In order not to
get lost in speculations letís concentrate on what is observed today.
The issue is not how life started on earth, but how it propagates
itself. No living entity known today generates its complexity from
scratch. It inherits it.
I started this thread to call the attention of my colleagues in the exact sciences, to a phenomenon which does not have a counterpart in their realm. While the complexity of matter can be generated from its elements, there is no sign or an observation indicating that nature generates the complexity of a living cell from scratch.