Some of the biggest market crashes in history have taken place in October. In 1987 I was a junior in high school and remember exactly where I was when I found out about it. The market dropped 500+ points which was 22% of the total market. 22% of today's 32000 market would roughly equate to a 7000 point drop in one day.
During the Great Depression of 1929, the Dow dropped 13% on 10/28 and 12% the next and lost almost half its overall value.
The posters of this clip feel we are at the same point.
Steve M