Thomas Cathcart is the author or coauthor of six books, including the New York Times bestseller Plato and a Platypus Walk into a Bar, Heidegger and a Hippo Walk through Those Pearly Gates, and The Trolley Problem, or Would You Throw the Fat Guy Off the Bridge?. He has been a college instructor, a hospital administrator, a social worker with inner-city gangs, a hospice director for patients with HIV/AIDS, and a lay leader in many congregations. He lives in upstate New York.