Like trading it is a probability game. You can never be 100% sure and there is no absolute right or wrong.
As the head of a country, it is his job to balanced all the factors and make a call. The experts will absolutely only recommend what is fail safe. And like trading and any statistical problem, you find the best outcome with insufficient information and no absolute answer.
I believe the scientists, statisticians, businesses, government officials will collective come up with a way to open our economy in spite of insufficient testing, insufficient treatments, insufficient information, by using proven statistical means like when we dealt with past epidemics. I think the US economy will recover and the light at the end of the tunnel is not a freight train coming at us but daylight.
So, as a trader, I kept buying.