Innovations rarely come from "experts." Jeff Bezos was not a bookseller; Elon Musk was not in the auto industry. When it comes to innovation, a legendary venture capitalist told Sebastian Mallaby, the future cannot be predicted, it can only be discovered. Most attempts at discovery fail, but a few succeed at such a scale that they more than make up for everything else. That extreme ratio of success and failure is the power law that drives venture capital, Silicon Valley, the tech sector, and, by extension, the world.