In the previous thread, Hoot, you said:
If you are right, Mod, then you have discovered an important biological principle. I'll call it the "abiogenic truncation principle"”once abiogenesis is successfuly established it cannot happen again, because existing biotic will truncate its late appearance by having it for lunch.
Modesty forbids me from leaving it there. I wasn't the first person to think of this by a long shot. Darwin said it a looong time ago.