Exactly! You agree that it would take 4 billion years to test out this theory. It is not testable. Evolving is a process, creation of the first single cell organism isn't even a theory. Theories can be tested. This cannot.
Is the idea of hyperspace and worm holes theories? No they cannot be tested. They are just great ideas.
Even William Gough said that it would take an "extraordinary" event to turn non-living matter into living matter. Or "Discussions of the origin of life usually assume that there is a specific event, however improbable, by which dead matter became a living entity." Bruce Weber a Professor of Biochemist
Look I am not claiming to be a scientist, and neither should you unless you are. We cannot begin to understand all, nor pretend to. That is why I pay people to do my tax. I am not a scientist, nor a CPA. It would be impossible for me to understand the complexity of the 6,000 pages and 500 million words of our tax code; as well as the biology and the physics behind this science at their level, or just take a lifetime to achieve it.
I openly admit that I am uncertain that there is an afterlife, and creator. I am driven by indisputably historical evidence that a man named Jesus Christ walked the earth, while disputably he was the savior of mankind. Yet you cannot comprehend nor understand the science behind the idea of non-living matter to living matter? I could find ample scientists that regard the transition from non-living matter to a living entity extraordinary. To believe this transition is a leap of faith; an unprovable, untested theory.