Over the past 50 years, the growth rate of the global human population has slowed markedly, from 2.1 percent annual growth in the late ’60s to about 1.2 percent today. Think 1.2 sounds low? Then you ...

I was hoping someone could help me solve this math problem that I thought up (perhaps this would better fit in the Lounge, I dunno, but it is at least tangentially connected to some groups' theories ...