Can conclusions about God – for example, that he does not exist, or that he lacks this or that property if he does exist — be deduced from well-established scientific theories? For example, do established results in biology concerning mutation show that God never guides mutations? I answer this question by explaining what biologists mean (or should mean) when they say that mutations are unguided. I make use of the fact that evolutionary theory is a probabilistic theory; its truth does not entail that it is causally complete.
