Does God Play Dice? Yes, but how? Einstein did not believe that God Plays Dice. He laid the foundations for today's thinking that the universe is governed by the immutable laws of physics - there is no room for chance, but these foundations may be built on sand. The science of chaos is forcing scientists to rethink even the most fundamental ideas about the way in which the universe behaves. Chaos thoery has already shown that the systems obeying precise laws can nevertheless act in a random manner. Perhaps God does play dice, within a cosmic game of complete law and order. This volume explains the contemporary theories of systems that obey simple laws but which are neither constant nor predictable. Ian Stewart reveals a strange universe. A universe in which nothing may be as it seems, where familiar geometrical shapes such as circles and ellipses give way to infinitely complex structures known as fractals. He explains how the fluttering of a butterfly's wings can change the weather and how the gravitational attraction of a creature in a distant galaxy can change the fate of the solar system. This text tells the story of this science and the implications chaos has for notions of predictability and the verification of scientific theories. Chaos is a whole world of ideas and possibilities, a kind of matementics, a fundamental insight into nature itself and it brings us closer to an understanding of literally everything.