High Quality Content by WIKIPEDIA articles! The evolutionary argument against naturalism (EAAN) is a philosophical argument regarding a perceived tension between biological evolutionary theory and philosophical naturalism — the belief that there are no supernatural entities or processes. The argument was proposed by Alvin Plantinga in 1993 and "raises issues of interest to epistemologists, philosophers of mind, evolutionary biologists, and philosophers of religion". EAAN argues that the combination of evolutionary theory and naturalism is self-defeating on the basis of the claim that if both evolution and naturalism are true, then the probability of having reliable cognitive faculties is low.