Posted: Apr 13, 2010 12:15 pm
by rainbow
Rumraket wrote:
You are setting an almost impossible standard. Whatever direct evidence of abiogenesis there was is surely lost now. I can't even begin to imagine the circumstances required to fossilize and preserve protocellular material for >3500 million years in the earth's ever changing crust.

Not 'almost'. It is impossible to find evidence that isn't there.
All the evidence that we have is for a Biotic Period, abeit a very early Biotic Period.
According to the Postulate, there was a period of 100-500 million years wherein life arose from the 'Prebiotic Soup' - but there is no evidence of the broth, not a noodle.