We still have this problem of what d and a was doing for that approximately two and a half billion years, the overwong majority of the history of life on earth. Why didn't it evolve at all during that time? What's going on? There's a wonderful book called rare earth by ward and brownley. And these guys talk about all the weird, quirky things that happened in the evolutionary history of earth. I just picked on the fact we universal explainers evolved seemingly fortuitously, seemingly once. But you can go back and realize that evolving from single celled bacteria to a multi cellular organism hasn't been able to erepeat it in the laboratory setting. Each of these things