I don’t know if I can fully agree. India and China made up 60% of the world GDP for over 2000 years of history. Does their decline into poverty mean there was a

I don’t know if I can fully agree. India and China made up 60% of the world GDP for over 2000 years of history. Does their decline into poverty mean there was a genetic change? Both those countries are now growing at very fast rate, has there been a change again?