You are talking about per capita. Yes, it will take a long time. But if the Chinese are half as productive as you and I their economy will be double our size.

You are talking about per capita. Yes, it will take a long time. But if the Chinese are half as productive as you and I their economy will be double our size. Remember there are at least 4 Chinese people per 1 person in the USA. That changes the math a lot.