On the EdgeFrom the New York Times bestselling author of The Signal and the Noise, the definitive guide to our era of risk and the players raising the stake In the bestselling The Signal and the Noise, Nate Silver showed how forecasting would define the age of Big Data. Now, in this timely and riveting new book, Silver investigates "The River," or those whose mastery of risk allows them to shape and dominate so much of modern life. These professional risk takers