I did read it. It's very very long though have you read all of it, I started to get bored when they started showing really complicated diagrams with no real explanation as to how they came to those conclusions.

Social studies is like that, it's very much couched in the sort of science that you would normally expect of physics or engineering but all it's conclusions are fuzzy but they come out with these concrete graphs to explain very personal responses. I find it to be intellectually dishonest to suggest that you can represent the world like that