Comment by projektfu

So it seems there is a median projection of mild decline way in the future. There are also reasonably probable scenarios that show no decline, or more precipitous decline. However, they generally agree that there will be at least 1 billion more people in the world, most likely 2 billion, and possibly more.

What is the real risk of the Earth eventually going back toward having 8 billion people after reaching 10 billion? Why is this "the exponential process one should be most concerned about today"?