This is a particularly exciting episode as we’re joined by Charles C. Mann, the New York Times bestselling author of “1491: New Revelations of the Americas Before Columbus,” and “1493: Uncovering the New World Columbus Created.” Charles shares insights with us about his more recent book, “The Wizard and the Prophet: Two Remarkable Scientists and Their Dueling Visions to Shape Tomorrow’s World,” and chats with Shely about the lessons the story of Norman Borlaug and William Vogt have for the future of agriculture.