Quote Originally Posted by Bohandas View Post
Isn't that a pyramid scheme?

I mean, correct me if I'm wrong, but assuming that the same will apply to each of those children once they themselves grow up I'm pretty sure that that's either a ponzi scheme or a pyramid scheme.
That's what leads to equilibrium traps, where agricultural production increases are matched almost exactly by increases in population. If you can't get cheap land you start bottlenecking pretty hard, and then famines break out.