"Worst yet, the effects of these droughts, and poor nutrition in the first 3 years of the a child’s life, have a lasting effect on the development of the infant brain, so that if they survive, they will never achieve a normal IQ ."
That explanation won't fly. Average Sub-Saharan IQ tracks with race, not diet. This has been confirmed through scientific studies. The 70 IQ average is constant with dark skinned people of Sub-Saharan ancestry regardless of their conditions of upbringing. Those with lighter average skin, such as the American black population, have a higher average IQ (85) due to admixture of European ancestry.
