The real story is the one no one has been talking about. The US has been the world's largest economy for the past 100-150 years. In another ~10 years, that will no longer be the case. Every year that passes afterwards, the US is going to fall further and further behind China, until it eventually gets lapped some time in the mid-21st century. It's going to be "interesting" to see what happens then.
http://fortune.com/2017/02/09/study-china-will-overtake-the-...
https://www.quora.com/Economic-History-At-what-point-did-the...