After reading the jacket blurb I was expecting something really intelligent. That's the reason I kept reading until the end, but it never happened. Granted, the author seemed to be up on his science, but as a writer, my granddaughter could do better on a school essay! I actually laughed out loud when I read characters in the eighth century using the word "OK." The author also constantly throws in meaningless "asides," and goes off on tangents only he can understand. This is the poorest writing effort I've ever seen, and I've been reading for forty-five years. Thank God I didn't buy the book.