Let’s say a recognized expert on cats claims one of them talked. People do not have to be experts in cats to say they need to see the evidence. Nor do any of us need a theory of knowledge to doubt it. But if you believed the cat talked you would. You'd have to come up with a whole lot of intellectual gymnastics in order to make such a claim seem respectable to others. Lesson: It does not require understanding a whole lot of epistemology or sophisticated theology to doubt the existence of God either. In fact, even a child can do it.