But the majority of the world that is overpopulated does not have the standards of nutrition and schooling of the west. If those are the reason behind the Flynn

But the majority of the world that is overpopulated does not have the standards of nutrition and schooling of the west. If those are the reason behind the Flynn effect, then when those countries become more developed, their intelligence should come up to parity. I you don't acknowledge this, then it sounds like you believe those in the west are genetically superior to those elsewhere.