Andy Norman, PhD, is the award-winning author of Mental Immunity: Infectious Ideas, Mind-Parasites, and the Search for a Better Way to Think. His work has appeared in Scientific American, Psychology Today, Skeptic, Free Inquiry, and The Humanist. He has appeared on The Joe Rogan Experience, public radio, The BBC’s Naked Scientist, and The Young Turks. His research illuminates the evolutionary origins of human reasoning, the norms that make dialogue fruitful, and the workings of the mind’s immune system.