“Being a skeptic doesn’t make me smarter or infallible—it just means I’m trying to fail slightly less often.” Michael Marshall has spent more than 15 years investigating pseudoscience, conspiracy theories and the psychology that sustains them. As Project Director of the Good Thinking Society, President of the Merseyside Skeptics Society and Editor of The Skeptic, Marsh has gone undercover at flat-earth conventions, exposed fake psychics, and campaigned successfully to end NHS funding for home...