I see what you're saying, namely that there's a disconnect between food/resource production and population growth in the 1st and 3rd worlds. But I would point o

I see what you're saying, namely that there's a disconnect between food/resource production and population growth in the 1st and 3rd worlds. But I would point out that there are many, many more factors involved beyond just food and other basic resources that influence population growth. Like you mentioned, child mortality rates are one, but cost of education and college are another. The Economist recently had an article about how many families don't have a 4th child because the majority of cars can only seat 2 adults and 3 kids. I still don't see overpopulation as a serious future issue because much of the world is showing the same steady decline in birth rates to near or below population replacement levels.