I have just not learned anything from this. The way China got there was working hard and developing its industrial and scientific capacity. I don't think at this point the US has even a military upper hand over China. If there is a hot war, China will be able to produce weapons quicker than the US can assemble a coalition against China, and at the same time China will stop supplying every vital export to the USA. The only way out for the US is to do what it used to do in the past, which is to develop its industrial and scientific capacity. There is no way to solve this problem through war.