One would expect the competition between the US and China to get ferocious over the next 20 years. The US hasn't had a serious direct competitor across the board (military + economic + political) in 70 years. My personal opinion as an American, is that the US has gotten lackadaisical about its formerly overwhelming superpower position, its focus, and the need to compete at a high level. That isn't surprising of course, one would almost expect that to always occur, and China has come on extremely fast. Hopefully China's rapid rise forces a reawakening of an older can-do spirit, across all spheres of US life (perhaps most especially in regards to the invaluable contributions a better functioning government can bring, as in the past). If not, then China will de facto rule Asia and half of Europe.