Not quite the absolute must read that GGS was. The one drawback with this book is that he is predicting, rather than looking in to the past, which gives his arguments slightly less weight. That's not to say it isn't valuable, or convincing for that matter, but GGS is, in my opinion, an absolute classic and this just lacked...well, I can't think of the word because I'm hungover. But the point is that it is a different kind of work he has undertaken this time, one that doesn't lend itself to as "perfect" argument, or what have you. Anyway, it's well worth the time.