In this groundbreaking new book, the renowned theoretical physicist Lee Smolin argues that physics – the basis for all other science – has lost its way. The problem is string theory, an ambitious attempt to formulate a theory of everything that explains all the forces of nature. Articulate, passionate and authoritative, Smolin charts the rise and fall of string theory and takes a fascinating look at what will replace it. A group of young theorists has begun to develop exciting new, testable ideas. Smolin tells us who to watch for in the coming years and how we can find the next Einstein.