Jamie Holmes is our guest today, talking about his new book Nonsense: The Power of Not Knowing (Crown, October 2015). Holmes argues that embracing ambiguity can help us lead more productive and happier lives. Also on the show, reporter Lila Cherneff visits a zebrafish lab on Mount Desert Island in Maine to learn about the science of resilience. Plus, contributing editor Mark Hay tells an alternate history of the dodo bird. Music this hour: “Soldiertype (militarised)” by Ketsa, from the album What’s Without’s Within “Take Me Higher” by Jahzzar, from the album Tumbling Dishes Like Old-Man’s Wishes andnbsp;