So, we've had "encouragement" since the pandemic began, at least from state and local leaders. The very old and ill were already largely self-isolated with the exception of their caretakers, who they still need. That experiment ended sometime in March, though it's still playing out in nursing homes.

We've known about masks and temperature checks since the beginning of the pandemic, and every reasonable scenario requires them. We can check on the progress of thermometer production and mask availability.

I have a hunch that developing the capacity to implement your proposal will give us enough time -- a few months at least -- to see how voluntary self isolation is working in the regions that are already ending the lock down.