Peter Diamandis has made a career of fulfilling his childhood dreams. He’s the man behind companies that make science fiction come true: The XPRIZE, Singularity University, and Human Longevity Inc. They’re as wild as they sound. On this episode of "Success! How I Did It," Business Insider's Rich Feloni speaks to Diamandis about becoming a doctor to appease his parents, experiencing zero gravity with Stephen Hawking, and how he's working now to increase the human lifespan.