I'll grant you that abiogenesis is in the same scientific category as "multiple possible previous universes."
I'm getting awfully tired of responding to these offtask cheap shots using category errors big enough to drive a truck thru. I didn't suggest there were actual multiple possible universes. I said you'd have calculate all the equally possible configurations of the past universe that are possible from our knowledge of the current universe, in order for a calculation to be a formal, deterministic proof of anything that happened, or couldn't have happened in the past.
Well, you did actually. But I'll take you at your word that you meant something else.
I said you'd have calculate all the equally possible configurations of the past universe . . .
No, you wouldn't. Unless you are claiming the laws of nature were somehow different in the universe's past.
"one must contemplate not just a single shot at obtaining the enzyme, but a very large number of trials such as are supposed to have occurred in an organic soup early in the history of the Earth. The trouble is that there are about two thousand enzymes, and the chance of obtaining them all in a random trial is only one part in 1020 x 102000 = 1040,000, an outrageously small probability that could not be faced even if the whole universe consisted of organic soup."
--Sir Fred Hoyle
It makes a lot more sense to believe in God.