Let’s start with what is supposed to be the solution to population issues, but is actually part of the problem. That’s the figure at the end of many of the classic population projections, the so-called “leveling off” point at which population growth will cease to be a threat to the globe. The question is whether “leveling off” is a realistic prediction or an unsupported and dangerous fantasy, and if it’s the latter what we can do to transform it into the former with a reasonable degree of justice.