William Lane Craig continues to desperately defend the indefensible.

[Esquilax]

Do you have any understanding at all of the mechanism of that change? Because if you did, you wouldn't be asking this question.

I don't believe there is such a mechanism which could turn a single cell into a human being over the course of billions of years. Certainly not natural selection acting on mutation.

Why not? It's already established science that when cells replicate, transcription errors known as mutation occur, and that the natural environment selects for or against those mutations via the resultant organism's suitability for that environment; why don't you think that's sufficient? We know that it happens, what force or mechanism are you proposing that would stop it happening at a certain, arbitrary level based on human defined morphological labels like species?