1. Age distribution would look like an inverted pyramid instead of a pyramid

2. The geographical, racial/ethnical and cultural demographics would also look like the totally different. The share of global population of the global south, which is currently highly dysfunctional, would be drastically more important, especially in the younger age groups.

Note that the increase of wealth of the “third world” is mainly due to China / India, followed a bit by Indonesia / Bangladesh / Vietnam. Nearly all of them have already a TFR < 2.1

Other countries’ economies even lost complexity and the share of their economies that are basically commodity exports increased