I speak with Josh Rosenblatt, author of Why We Fight: One Man’s Search For Meaning Inside the Ring. Josh is a writer and journalist who’s work has appeared in Vice, the Texas Observer, and the Austin Chronicle. We discuss his book and his journey to face his deepest fears by agreeing to take part in a mixed martial arts fight. We discuss the psychology of fear, ancestral trauma, evolutionary biology, mixed martial arts, and so much more.