The Last True Hermit Guest: Michael Finkel, author, "The Stranger in the Woods" Let's explore social isolation -- complete social alienation -- by focusing on a single, highly unusual, and actual quite baffling story. It’s baffling because we social creatures can hardly imagine it: a man disappears from society for twenty-seven years. He lives in utter isolation, in the woods. Not far from people, but in a place where they can’t ever see him. He’s in hiding. In all those 27 years he exchanges words with another human being apparently only once. Special Collections: International Swimming Hall of Fame and Museum Guest: Jeff Simpson, BYUradio Jeff explores the International Swimming Hall of Fame and Museum in Fort Lauderdale, Florida. It's got lots of famous people, but not necessarily the ones you'd expect. Paleomedicine Guest: Karen Hardy, ICREA Research Professor, Prehistory Department, Autonomous University of Barcelona Prehistoric humans probably used plants not only for clothing, food, and tools, but also for medicinal purposes. Thank the French Revolution for your Pearly Whites Guest: Colin Jones, Professor of History, Queen Mary University of London Nothing is more universal than smiling . . . or so you might think. Like everything else, smiles have a history, and this one involves quite a bit more painting, politics, and revolution than you might expect.