Germonicus writes:
Umm, the theory of universal common descent is a fairly broad model, and it's perfectly falsifiable (Karl Popper argued otherwise, but I don't find his argument particularly compelling). Is it your position, then, that the broader a model is, the less falsifiable it needs to be?
The first forms of life, as we know it, all were forms of prokaryotes. You're most welcome to start digging, instead of writing stuff on the net.
Edited by Pressie, : No reason given.