If one accepts abiogeneis, it's highly irrational to conclude both that there was a singular incidence and a singular surviving incidence. If we yield then to the possibility of multiples, we must also conclude, since there is but one possible formulae, that they would have evolved in precisely the same manner in any given environment. Meaning, there could in fact be multiple trees that share precisely the same historical genetic evidence.
To put this another way, on the scale of probability, the very existence of one virtually proves the existence of identical others.
I have to tell you, though, I'm not overly impressed with abiogenesis, either.
We can also easily define "intelligence." And we cannot deny that there is an intelligence that presently lives beyond all comprehension. And likely always will. How you label that then, it seems, is but a matter of faith.
The bible says, "In the beginning was the Word." And when you realize the scope of this in astrophysical form, it can blow your mind. Because that's precisely what occurred.
We can take this to the next step...
Call ourselves, say, "Evolutionists." But we cannot do this without recognizing evolution of mind, thus its genetic physiological precursor still present in all.
To fail to recognize basic truths is to be possessed of rather narrow philosophy.
Apples to oranges, evolving vernaculars, etc, etc. In short, God has won.
