Peter Thiel pulled an iPhone out of his jeans pocket and held it up. “I don’t consider this to be a technological breakthrough,” he said. “Compare this with the Apollo space program.” Thiel, an entrepreneur who runs both a hedge fund and a venture-capital firm, was waiting for a table at Café Venetia, which is on University Avenue in downtown Palo Alto, California. The street is the launchpad of Silicon Valley. All the café’s tables were occupied by healthy, downwardly dressed people using Apple devices while discussing idea creation and angel investments. Ten years ago, Thiel met his friend Elon Musk for coffee at the same spot, and decided that PayPal, the online-payments company they had helped found, should go public. Soon after the initial public offering, in 2002, PayPal was sold to eBay for one and a half billion dollars, and Thiel’s take was fifty-five million.