"Self-indulgent and silly."
I have to admit, my expectations may have colored my opinion of this book, I was expecting a well researched survey course of the various horrible things that might happen to our planet and society-- kind of like the more sensational bits of Bill Bryson's "Brief History of Nearly Everything". What I got was a disjointed "personal journey" sort of narrative by an author who apparently never heard a crackpot theory he didn't like. The bits on Mayan beliefs were interesting, but where the author tries to tackle hard science, it gets hard to listen for long without needing to sit down from dizziness, due to all the unavoidable eyerolling you'll find yourself doing.