RE: Do you think there is a 'shadow biosphere'?
July 30, 2015 at 7:31 am
(This post was last modified: July 30, 2015 at 7:33 am by Alex K.)
(July 30, 2015 at 4:03 am)Ashground Wrote: How could we prove it hadn't come from our 'tree of life'? Especially if there had been crossbreeding.
It would have a different system of inheritance (no DNA or RNA or plausibly related structures). One could maybe not ever definitely prove that this other life strand and us didn't still come from the same abiogenesis and split super early, but I'm no expert. Maybe with a second tree of life one could try develop a joint abiogenesis and see how far one gets... And if one fails, tentatively call it a separate tree of life.
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition