Derb explains science to his fellow conservatives Tom Bethell and Peter Robinson (and no doubt many more, such as Hugh Hewitt):

Evolution is not the end term of a syllogism: it is an explanation for the observed variety of living species–an extremely successful and fruitful explanation. For 100 years and more, every new fact brought to light has conformed to the theory; none have contradicted it. Nor is any alternative theory in play. Nobody is doing science — tackling problems, uncovering new facts, generating testable hypotheses, making predictions — on the basis of any other theory. Nobody, nowhere…

…yes, material causes only are admitted in science, because science is the attempt to find material explanations for observed phenomena. Likewise, only hollow balls 2.5 inches in diameter are allowed in tennis, because tennis is a contest played with 2.5 inch diameter hollow balls. Whether other kinds of balls exist is a matter of opinion among tennis players and fans, I suppose; though if a player were to come on court and attempt to serve a basketball across the net, the rest of us would walk away in disgust.

Just so.