I'll admit that I am a bit confounded that NYC, as one example, has yet to show any signs of a notable increase in cases as a result of two plus weeks worth of protests (plus reopening, although it is only minimally reopen).
Like, either masks are more effective than some give them credit for (myself included), NYC is closer to herd immunity than presumed (antibody testing could be inaccurate), and/or maybe there should no longer be any bans on large outdoor gatherings.
A quick search of the net, to see if anybody was sharing these questions, led me to this:
A new study projects that the Covid-19 herd immunity threshold could be as low as 10 percent.
The lower threshold immunity is caused by variability in the way people react to the virus. Because many people are asymptomatic and others get mild cases, this greatly lowers the herd immunity thresholds.
Past estimates of 70 percent herd immunity thresholds assumed homogeneous response to the virus, which is not the case.
Antibody tests in New York City have shown 20 percent of New Yorkers there have antibodies to Covid-19. If that's the case, and if the virus does produce heterogeneous responses, then New York City could have already reached herd immunity.
https://www.northsidesun.com/new-study-shows-covid-19-herd-immunity-threshold-could-be-low-10-percentI don't really understand it nor would I take this finding for granted, but it would help to explain some curves and trends if the herd immunity threshold per community was a lot lower than presumed.