Hi, has any one read "The Road To Reality" by Roger Penrose? It looks quite complicated if you browse through it but I started reading the book and in the preface Penrose says that in the first 17 chapter he develops and explains all the mathematics necessary for the rest of the book. Is this really true? Is it easy or hard? I need some feedback. I was literally drooling over this book at the book store, a fairly mathematical treatment of loop quantum gravity in the last chapter! and the author claims that all needed mathematics will be explained! its like a dream!. Well any way, all feedback is welcome, tell me if its impossibly hard to understand or fairly easy or whatever.