China - https://www.youtube.com/watch?v=KY_zsc0wf1Y

I am not an expert on geopolitics and when it come to CCP's data. I'll always assumed false/fake then verify but one thing is real is the One Child Policy. Xi want dual circulation economy but I highly doubt that's going to happen with its population decline. China going to deal with labors, support older population, long term impact on economy...etc.

if Peter is correct, China is becoming another old folks home like Japan. China's birth rate is already approaching Japan's level.

Africa and India have young populations, they’ll be the powerhouses of the second half of this century.