Reading this book is a little bit like being at a Feynman lecture(*). It holds your attention, and everything seems to follow logically, but when you get to the end of the chapter you're left feeling a little bit disoriented. "Wait, did that really make sense all the way through?"<br><br>Basically, if you're a physics dilettante like me, you're going to have to read each chapter twice.<br><br>(*) I was privileged to attend two, one in my Freshman year, one in my Sophomore year.