Inverted population pyramids are forming almost everywhere, excluding Africa for now. If you read this 18 year old book https://en.wikipedia.org/wiki/The_Pentag

Inverted population pyramids are forming almost everywhere, excluding Africa for now. If you read this 18 year old book https://en.wikipedia.org/wiki/The_Pentagon%27s_New_Map https://en.wikipedia.org/wiki/The_Pentagon%27s_New_Map you will see that it wasn't an unexpected development for the policymakers.