Works of popularized science like this get me thinking...While on one hand I admire the knowledge that the authors have, on the other hand I, as a reader, have no real option other than 'sit and listen'. I guess some of us here have the ability to evaluate the theories themselves, but I don't, and I think most don't. So we just sit and listen, like children hearing a story from an elder whom they trust. I trust Krauss based on his credentials and reputation, that he is the type to, you know, check his calculations, so to speak, but honestly, if he told me instead that the universe was created some other way, or that its inflation will stop someday, I'd still take whatever he would say as true, and I wouldn't know the difference. Not one bit. After reading the book, or watching the video, can I honestly say I understand the material? Most probably, I can just, at best, repeat what he says.

Science like this is so advanced, that books of this kind are only 'this is what the experts know at this point of time', because it's meant for a mainstream audience and the mainstream audience can't possibly work out the math and the semantics behind science this sophisticated. Without wanting to sound like a cynic, I wonder what would make me wiser: Getting this book, or getting a highschool physics book and work out some of the classical mechanical exercises in it(you know, with the springs and the pendulums and the rest). In fact, it would be an interesting question: How many of the people that will be talking about quantum mechanics, virtual particles, cosmic inflation, dark matter and such after reading the book, can actually solve highscool material if asked? Just a thought :P