Everybody knows Einstein, but John von Neumann has been equally important—if not even more critical—in understanding, eighty years ago, in which direction humanity was moving. Computer architecture, IA, and game theory, in brief, the tools of the future, of his future, which is the time we are living in now. An unknown genius and a bon vivant. This book is a journey through his life and, at the same moment, a history of the major physics and quantum physics discoveries in the first four decades of the 20th century. It is very clearly written and has a lot of humor, but beware: also a lot of mathematics (most of which I had—to my shame—to skip).