and you can throw paypal in there, the company put in money matters. a lot of people use paypal and it changed the way we do business in this country. >> he had millions in silicon valley with a couple internet startups. >> he is worth $13 billion these days. that the estimate but not really money that drives this guy. >> it sounds a little crazy to people. its ultimate goal in life is to make man a multi planetary > species and get us to mars. the driving force with companies like tesla and solar city where he is the chairman you seem focused on global warming and changing our energy equation. john: the hyper loop. they're going to build a test track in california. what is the hyper loop and how