As you haven't even bothered to read both of my posts in this thread, I'm not answering you.
I don't follow this literature as closely as you do, so I have no idea how much impact this hypothesis has had on recent research, but it appears laughable on its face. As a relatively-informed outsider, I had long ago come to the conclusion that intelligence as measured by IQ had around a 50% genetic component.
These are similar numbers to those reported in twin studies and even in simple regressions...