It is interesting in some parts but FULL of pure speculation. He does mentioned in the beginning that the views are just his opinions but the way it is written it is almost like a fact which I am not very keen about. It is so detailed that it is almost like you can say the guy has a vivid imagination. I am not trying to put it down, as I said, it is very interesting in some parts...just some others are a bit too much for my taste.