The chart of the Dow Jones looks exactly like 1929. After a long rise it falls sharply, about the same amount it did last week. And after that comes a less steep but steady decline over 2 years, all the way to 10% of the high or so.
That was the Great Depression time into the 1930s.
May be they will blame Trump for this, although Obama, Bush jr. and the previous ones all participated in creating this situation. And nobody really has a solution for the problems that exist, whatever party it is. The only answer would be declaring a default of the debit - but then the glory days of the US are over.
RE: book review: The World War 1 Triva Book, by Bill O'Neill