BET can only look backwards and assemble what had already happened.
Biological evolution is silent on the future.
Biological Evolution Theory is incomplete, invalid and false. It was created for the sole purpose of removing religion from the arena of biology. Just as the analogous history of Uniformitarianism was created to remove religion-catastrophism out of geology. No serious geologist pretends that Uniformitarianism is true science. But, sadly, biology has not progressed far enough for the community at large at present to realize that evolution like uniformitarianism are mere algorithms.