I got three or four chapters into this text and had to stop. As an engineering student I am fairly well versed in physics and mechanics; Rinker takes leaps of faith and liberties with the laws of physics that he has no right to. I recall one passage where he simply asks us to ignore the fact that a velocity term is squared. How absurd. This, combined with the feeling that the book was never edited (spelling and grammar errors, as well as typos abound) forced me to stop reading