Exactly what this book promise to be! Smart, a good synthesis of the subject and very well explain so the general public can understand what it's about. I've learn more then I thought, I was expecting it to be good more maybe more of an introduction while in fact it goes deep enough in some place to help me learn some new stuff even if I already have a small (I insist on small) background on the subject (having read books, articles, watching documentary and others stuff about physics, astrophysics and quantum physics). If you,re interest in this subject and want to learn about it, this is a nice choice for the newcomers and the casual amateurs as well!