I don't really buy that. My take is purely anecdotal and deductive, but I see too many families with HG+ people on every branch of the family tree, and we KNOW that intelligence in general has a genetic component to it. So how could HG+ not have a genetic component?

I would agree that intelligence is too complex to boil down to *just* genetics. But it seems VERY clear that there is some sort of genetic component. How could there not be?

Kriston