Walter Isaacson, the CEO of the Aspen Institute, has been chairman of CNN and the managing editor of "Time" magazine. He is the author of "The Innovators: ""How a Group of Hackers, Geniuses, and Geeks Created the Digital Revolution"; "Steve Jobs"; "Einstein: His Life and Universe"; "Benjamin Franklin: An American Life"; and "Kissinger: A Biography", and the coauthor of "The Wise Men: Six Friends and the World They Made". He lives in Washington, DC. Follow him on Twitter @WalterIsaacson.