I wonder how they separate genetic intelligence from enhancement by social conditions. It is very apparent that Indian, Arab, and Asian culture is such that academic effort is highly enforced. There is a unique discipline in most Asian friends that I had in graduate school, which brought about over their lifetime a fine tuned intelligence. I am somewhat skeptical of the ability to concretely attribute part of ones genius to inheritance. It is common to have two parents that are extremely intelligent and their offspring follow suit. However, this could be a matter of “dinner table� schooling, meaning the kids grow up with role models that carry on abstract, complex, and ingenious observations and conversations. These kids have the avenues to develop in a very different way than others. I guess I need to pick up this book to find out on what they base their hypothesis. I have read that learning disabilities are believed to be passed down through generations.
My reason for maintaining a high level of skepticism also comes from my concern that this theory will foster complacency and justification for mediocrity.