China has experienced astronomical and exponential growth over the last 20-years, and at the rate at it has progressed it will be difficult for it to continue on that straight line due to the size of its GDP now and the potential for future expansion.
If China produces any more, there may not be anyone that can afford to buy that excess, especially considering the current Global Economic Climate.
So, is China's economy going to be down and out in the future? No, not hardly, but that economic expansion will be a lot harder to produce, numbers like 10% growth year-over-year will be unsustainable forever.
This previous economic expansion has made things more stable in China but is also a double edged sword that cuts two ways.
China will have growing pains, and it will be painful, but it is also manageable, if they are proactive and watch the ball closely.
For those who worry about China's future, I concur with their summations and conclusions, perhaps for other reasons than are commonly stated.
Indeed, I am quite concerned about the peasant class in China, there are 100s of millions of folks, and if they get upset due to economic hardship, or other reasons compounded from there, it is like a time bomb waiting to go off.
It is something that must be addressed, and China needs a "social contract" with her people and a sense of responsibility for each person to help China as a whole, with that you might be able to bypass much of the growing pains.
The Chinese have a lot to consider before they start building Golf Courses and riding the life of luxury.
Please consider all these very serious future economic issues.