More than 80 percent of Americans now say that we are on the wrong track, but many if not most still believe that the history of other nations is irrelevant -- that the United States is unique, chosen by God.
So did all the previous world economic powers: Rome, Spain, the Netherlands (in the maritime glory days of the 17th century, when New York was New Amsterdam) and 19th-century Britain. Their early strength was also their later weakness, not unlike the United States since the 1980s.
There is a considerable literature on these earlier illusions and declines. Reading it, one can argue that imperial Spain, maritime Holland and industrial Britain shared a half-dozen vulnerabilities as they peaked and declined: a sense of things no longer being on the right track, intolerant or missionary religion, military or imperial overreach, economic polarization, the rise of finance (displacing industry) and excessive debt.