Comment Re:Nonesense (Score 1) 104
I think all we can say is that abiogenesis has happened AT LEAST ONCE on Earth (assuming you don't hold with panspermia or similar theories). It's quite possible that it has happened multiple times but that the resulting organism then died for other reasons. E.g. It may have drifted into an area too hot/cold/acidic/alkaline for it to survive, or if it happened today it could be rapidly eaten by an amoeba several billion years ahead of it in its evolution.