From TED2012: Peter Diamandis makes a case for optimism -- that we'll invent, innovate and create ways to solve the challenges that loom over us. "I’m not saying we don’t have our set of problems; we surely do. But ultimately, we knock them down.”

Peter Diamandis runs the X Prize Foun­da­tion, which gives rich cash awards to the inven­tors and engi­neers who’ll get us back to the moon, build a better car and explore the genome.