In 2017 (i.e, pre-pandemic), China’s GDP per capita was 88% of Brazil by exchange rates 97% of Brazil by PPP. Given this, it was attractive to view China as just seven Brazils.
However, this would be a mistake. Hong Kong on its own contains a larger population of individuals of >125 IQ than all Brazil. Just seven Hong Kongs would have a population of individuals >125 IQ equivalent to Germany. And China obviously has a lot more than just seven Hong Kongs’ (52 million people!) worth of talent. Shanghai alone, with a population of 24 million, possibly contains more individuals of >125 IQ than Germany. By my estimate, China contains 64 times as many individuals of >125 IQ as does Hong Kong, or twice as many as does the U.S. thus making China possess the largest pool of high-tier talent on Earth: