If it is true that the peaks and valleys reflect behaviors, adjustments by individuals, we don't need some lock down, folks will alter as needed. I noted when Kemp opened Georgia April 23 that a lot of places stayed take out only, so that was a behavior. Traffic seems to have recovered, that's hard to judge of course.
Holiday crowds were a behavior. Coming out of that period adjusted behaviors, maybe the numbers got scary too for some.
I'm still waiting on the vaccine.