KRAUSS: Well, the title of the book, "A Universe from Nothing: Why There is Something Rather than Nothing" deals with this question. It's been around for as long as people have really started to ask questions about the universe and is really at the heart of a lot of the world's religions. Why is there something rather than nothing?
If we live in a universe full of stuff, how did it get here? And many people think that very question implies the need for a creator. But what's truly been amazing, and what the book's about is the revolutionary developments in both cosmology and particle physics over the past 30 or 40 years that have not only changed completely the way we think about the universe but made it clear that there's a plausible case for understanding precisely how a universe full of stuff, like the universe we live in, could result literally from nothing by natural processes.