I refer you to the price activity of February 24, 2020 through March 23, 2020. You may have missed what some of us call a market decline; or, as CNBCC would say, "Markets in Turmoil."
Why are so many frustrated that what happened already hasn't happened again? And why do so many speak as though it hadn't happened at all?
Indeed. "Drop" by most folks now appears to be defined as 50 percent or more over a couple of years. Hell, maybe even 70 percent wouldn't work these days.