> All developed countries And all non developed countries will potentially add 3-5 billion to current population [0] [0] on moderate forecast, IMHO optimistic

> All developed countries And all non developed countries will potentially add 3-5 billion to current population [0] [0] on moderate forecast, IMHO optimistic sharp decline is not possible without very aggressive global intervention to population growth (either from rational human thinking or from ecological catastrophe). https://en.wikipedia.org/wiki/File:World-Population-1800-2100.svg https://en.wikipedia.org/wiki/File:World-Population-1800-210..., https://en.wikipedia.org/wiki/World_population_estimates https://en.wikipedia.org/wiki/World_population_estimates