Without any consideration to the true wash-out the Coronavirus can end up exacting on the world markets, there is some rational thinking we can do with regard to support. The market is going to continue to go down, but this support level will keep it from going fully apocalyptic. If it breaks this support we'll see some real panic, but so far it's held. What we can see is that investors who bought at Trump's election and created the Trump bump will not want to lose their initial investments and will go cash if it drops too far below that.
For anyone reading this who is wondering just how much panic we're likely to see and is trying to take advantage of the current conditions, I would say to conservatively short the general market. The overnight injection clearly failed, and the Fed can't prop up the entire market for the duration of the health crisis. Manipulate a bit, perhaps, but single-handedly support? Definitely not, and they won't. This will go down. How far down will depend on institutional investors.