If we all are doing our part, why is cell phone mobility only down 40%?
I understand the temptation to say "nothing works". After all, if nothing works, then we can get rid of all these annoying restrictions.
But there is a reason Riverside and San Bernardino each had over 2500 cases per million population, while every Bay Area county was at 1000 or less.
It isn't seasonality- RC and SB have more daylight and less cold than we do.
It isn't density- RC and SB are less dense than the bay area.
It isn't seroprevalence- RC and SB have more built up immunity than we do.
I suspect it is behavior. Socal may just have more people holding small indoor gatherings. Which is part of why Grace hates the thought of fines for dinner parties, but I don't mind it. Its hard to imagine the police breaking up your party if you have forgotten what it is like to be at a party.