Out of panic and mania comes opportunities. The question is who is going to take advantage of it?
Smart money. That's why we should always have 30-50% in cash for such opportunity. For example, RUSSEL2000, $IWM lost it's 5 years gain in just one month or DOW30, $DIA lost its 2.5 years gain.
RE: Recent dump of crypto probably the best opportunity to buy cheap.