 Darwin only had this doubt about questions beyond the scope of science, and thought science was well within the scope of an evolved mind.Michael Ruse said that by presenting it as "Darwin's doubt" that evolutionary naturalism is self-defeating, Plantinga failed to note that Darwin at once excused himself from philosophical matters he did not feel competent to consider.Others, such as Evan Fales, agreed that this citation allowed Plantinga to call the source of the problem EAAN addresses "Darwin's Doubt".