To explain our universe physical theories rely on a tool: the top-level math reserved to a minority. The magic of Brian Greene is that he was able to detach from the tool to get high and share the greatest number, by simple examples, the fascinating results after years of research. It is not very common when studying theoretical physics to get to extricate himself mathematics (wonderful tools) for an explanation of the physical sense. Brian Greene is the magician who excels: his book is worth all the adventure novels!