China will certainly eclipse the U.S. as the world's dominate economic power, but that's simply because there are so many more Chinese than Americans (assuming China's authoritarian fascist government doesn't collapse). But does it really matter? Yea, we'll probably end up literally selling the country to the Chinese but we deserve to get evicted if we're that stupid. Assuming that we don't sell the country to the Chinese, we'll still be in great shape even if we only have the world's second largest economy. Though it would really suck for Taiwan.