[WastingMyTime89]

Yep and there is broad disagreement regarding when the peak will be. I remember at least one analyst for a large found implying it would be much sooner that what the UN model predicts. It’s apparently surprisingly hard to give good long term prediction for population growth.

I think it’s a bit late for what you are proposing however. Most of the world population is quite young.

[munificent]

I mean, the entire shape of that graph changed radically with the invention of the Pill, so it's probably very hard to predict going forward when we have no idea what upcoming technological innovation or cultural change will affect birthrates.