The problem, I believe, is that until we have a vaccine there's always the risk of new infection waves popping up from asymptomatic cases in high density popula

The problem, I believe, is that until we have a vaccine there's always the risk of new infection waves popping up from asymptomatic cases in high density population centers. That's why I'm unsure about how slow this "re-open" would have to be, and how long it would take for things to start looking "normal" again.