Jocko Willink is retired Navy SEAL and author of "Escape Plan" and "Doomsday Machine". In this episode, Lexman talks with Jocko about his recent book, "Coronet: Thresher of the Seas". They discuss how the thresher whale is the ultimate predator, how Jocko multiplexed his senses to become one with the animal, and what lessons can be learned from its behavior.