Macro-economically, a market crash is a signal that investors don't trust public companies to be revenue generating engines in the future. Small market correcti

Macro-economically, a market crash is a signal that investors don't trust public companies to be revenue generating engines in the future. Small market corrections occur when other related assets or systems readjust, like housing markets or trade regulations. If anyone knows when or why the next crash is coming, they could make millions on that knowledge. Anything else is most likely just blindly throwing darts - someone will turn out to be correct but analyzing their reasons for the crash will be a classic case of survivorship bias. I think the market is relatively efficient in this aspect.