God is a delusion—a ‘psychotic delinquent’ invented by mad, deluded people.1 That’s the take-home message of The God Delusion. Although Dawkins does not offer a rigorous definition of a ‘delusion’, he clearly means a belief that is not grounded in evidence—or, worse, that flies in the face of the evidence. Faith is ‘blind trust, in the absence of evidence, even in the teeth of evidence’.2 It is a ‘process of non-thinking’. It is ‘evil precisely because it requires no justification,