Who in his right mind would ever believe that the complicated homo sapien derived from a speck? That's getting the larger from the smaller.
When I was in school, we were taught that one of the fundamental postulates is that one cannot get the greater from the smaller.
Evolution is a theory, and an exceptionally wide-eyed foolish one at that. Nevertheless, it is a mere theory as much as tapioca pudding causes Milky Ways is a theory.