Should you wear a mask outside? To the grocery store? Is the virus "airborne?" What about that one study saying it could live for hours in the air? This is the best guidance currently available: https://www.theatlantic.com/health/archive/2020/04/coronavirus-pandemic-airborne-go-outside-masks/609235/

It's by @edyong209 but I did not tag him in the original tweet because I respect his menchies