Understanding that this is an introduction into the study of the physics of generally speaking, literally everything. There is a LOT of information in this book, and Neil DeGrasse Tyson, does an outstanding job of condensing down and translating this information into language for the astronomy layman. Again this is Physics, and while Neil DeGrasse does a great job of explaining the universe, in a way that I believe (to his awesome credit) only he can do. It is STILL physics.... Slow down, take your time and absorb this vastly condensed, concentrated mass of information, in order to get the most out of the read.