It's good to make decisions with a sober view of risk and reward. I feel so much market advice that filters down to us laypeople is whether we should or should not buy or sell, when really it is all based on our level of risk tolerance, how much in terms of assets we have, what our time horizons are, what our expertise is. I would say a healthy young person with plenty of cash to burn might well look at buying stocks now. But a person nearing retirement, perhaps with health issues, they should probably board up and get ready for the storm. Most people below retirement age should probably just stop freaking out and keep contributing to their retirement plan as they (hopefully) have been doing, and make sure to have some cash on hand.
Our society does not do well with self-control or with gray areas. We want easy answers, which, unfortunately, don't usually exist.