I love visual display of quantitative information when it is done well. In fact I even bought the Edward Tufte book years ago.
I just spotted this chart, showing the comparative progress of 4 bear markets. It overlays 1929 crash, 1973 oil crisis, 2000 tech crash and the yet to be given a good name 2007 current bear market. If we are to take it’s inferences…hold on to your hats.