Elon Musk is the richest person in the world and the most interesting business leader of his time.

Disruptive and innovative, Musk has already revolutionized two giant industries— autos and aerospace. His planned purchase of Twitter will turn him into a power player in a third: social media.

In this episode we look at what Elon Musk and his team achieved with SpaceX and share part of our 2121 interview with journalist Eric Berger, senior space editor at the science and tech news site, Ars Technica. Eric wrote the book "Liftoff: Elon Musk and the Desperate Early Days That Launched Space." We also hear from our co-host Jim about his Commentary Magazine article, "Can Elon Musk Save Twitter?" We learn more about the risks and obstacles involved in buying the digital public square that Musk plans to take private.