The theologian Meric Casaubon argued—in his 1668 book, Of Credulity and Incredulity—that witches must exist because, after all, everyone believes in them. Anything that a large number of people believe must be true.

Sometimes the fluffy bunny of incredulity zooms around the bend so rapidly that the greyhound of language is left, agog, in the starting cage.

Jules turned to her, incredulous. ‘Do you socialize with Republicans?'”‘It happens, Jules.