" The overall concept of this book is interesting - and the chapters that actually focus on the math and science of human predictability were very interesting and informative. However, these chapters could have been developed a lot more, easily displacing the historical thread that just didn't seem to fit. Essentially, there are two 'books' here. One is the history lesson - which if further developed could have provided a bit more foundation for those of us having no knowledge of the crusades. The second is essentially a scientific paper, but as written, without enough data to be published as such. Without focusing on either the history or the human behavior, the reader is left to try to understand what the author is getting at throughout the book - and then at the end, is left with a sense of disappointment because of the book's lack of closure/conclusions. "
— Debra, 1/21/2014