I didn’t watch the video, but stock prices fell back to reality in 1929.
It was Hoover’s cajoling to maintain employment that sent the stocks way down.
The mortgages were callable and badly structured.
Most of the 1920s were a boom on all cylinders, followed by a bust, on all cylinders.
“I didn’t watch the video, but stock prices fell back to reality in 1929.”
The stock market had regained virtually all of its losses a year later. The straw that broke the camel’s back was a retroactive income tax passed in 1932 on the 1931 incomes. The top marginal rate went from 25% to 63% and the depression ensued.