The advice come from “Zero to One” book. This article is a short summary of it. The first team Thiel built has become known in Silicon Valley as the “PayPal Mafia” because so many of his former colleagues have gone on to help each other start and invest in successful tech companies. They sold PayPal to eBay for $1.5 billion in 2002. Since then: Elon Musk has founded SpaceX and co-founded Tesla Mot