The chart shows the S&P 500 (monthly bars) since 1872 on a log scale.
Maybe it is not as bad as they say, and we are currently "just" in the Supercycle Wave 2.
Before us would be the longest Wave 3. Hopefully that's true. I can dream, can't I? ;-)
Where did the money come from at the end of Wave 2 in June 1949 and in July 1982?