4.0

I'll confess: a lot of this was over my head. (I tell myself that's largely because I was listening to the audiobook instead of reading the text, which makes it easier to quickly re-scan some confusing bit of deepness.) Nonetheless, it was a rewarding book because of the sense of deep connection with the universe it evokes. I will very probably read Krauss' other pop-science book, "A Universe from Nothing".