"Crash" of an asset/currency is always against other assets/currency -- you need to define what its comparable otherwise you can not measure it. Was it a "cras

"Crash" of an asset/currency is always against other assets/currency -- you need to define what its comparable otherwise you can not measure it. Was it a "crash" though in scope? Black Friday in 1987 was a 22% drop in the stock market. Yesterday was a 14% to 18% drop depending on how you calculate it. Close to what was considered a prototypical "crash": https://en.wikipedia.org/wiki/Black_Monday_(1987) https://en.wikipedia.org/wiki/Black_Monday_(1987) Basically BTC is highly volatile, thus it probably crashes all the time based on standard definitions.