That equal-weight detail hit me hardest. The S&P 500 falling 1.82% while its equal-weight version fell just 0.79% says the pain was not broad at all, it was concentrated in the giants. I have felt that in my own reading lately, good earnings getting punished anyway because expectations were already sky high. The Binance hack made headlines, but your point that the slide started October 6 is the part people will forget first.