I think today's sudden crash was just a knee-jerk response to COVID-19 being declared a pandemic.
There really isn't anything else that can be said about COVID-19 now that would produce an even worse response than we already saw today, so I think we have seen the worst of it, at least in terms of sudden severity.
We might still trend a bit lower from here since the virus is nowhere near finished, and people are looking to hold more liquid assets like cash during what idiots think is the end of the world.
Pretty stupid really, but it always happens. Smart investors know to short the market when a pandemic is declared, while the rich are going to have a field-day buying up the cheap shares and properties that result from the mass hysteria.
At the end of it, the idiots will be left poorer and the rich will be richer, as things always were.