This has been bugging me for a long time. But as I have been busy and I am math and economics impaired, I thought I should just throw this out as a bleg, since economists always disagree with each other.

How long would it take, assuming current trends hold as they are, for China to pass America economically? We’re growing at about 3% annually while China’s growing at something like 8-9% annually. I would guess our rate is more sustainable. But let’s assume everything holds constant. When would China have a higher GDP and/or per capita GDP? Why is this a good/bad way to look at the issue? Etc.