The graphic from the Economist says it all.
Hello USA, Bye USA. :) but how far would this go? Pretty far. Its your proverbial “if Chinamen added 1 inch to their shirt tails…” situation.
Look at the trend, and there is no reason to assume that the trend would slow in the next 5-10 years, then we can very well end up with sales in China being double that of USA. What will that do to the industrial production and economics of the world, eh?