We all want to turn back time. But until we build a time machine, we’ll have to rely on a few creative approaches to capturing things as they were – and preserving them for posterity. One is upping memory storage capacity itself. Discover just how much of the past we can cram into our future archives, and whether going digital has made it all vulnerable to erasure. Plus – scratch it and tear it – then watch this eerily-smart material revert to its undamaged self. And, what was life like pre-digital technology? We can’t remember, but one writer knows; he’s living life circa 1993 (hint: no cell phone). Also, using stem cells to save the white rhino and other endangered species. And, the arrow of time itself – could it possibly run backwards in another universe? Guests: Michael S. Malone – Professor of professional writing at Santa Clara University and the author of The Guardian of All Things: The Epic Story of Human Memory Oliver Ryder – Director of genetics, San Diego Zoo Institute for Conservation Research Michael E. Smith – Chemist, Arkema, Inc Sean Carroll – Theoretical physicist at the California Institute of Technology, author of The Particle at the End of the Universe: How the Hunt for the Higgs Boson Leads Us to the Edge of a New World Pico Iyer – Writer, author of The Man Within My Head and the New York Times article, “The Joy of Quiet” Descripción en español First released October 29, 2012. Learn more about your ad choices. Visit megaphone.fm/adchoices