Yeah, I think there’s maybe a more general solution of the form: Places can publicly declare their R_0 threshold for shutdown and their surveillance mechanism to detect when it’s hit.

I would imagine that, given a detailed surveillance mechanism that’s strictly adhered to, you could calculate the maximum “time to detection” of how soon after hitting that threshold you’d know about it.

Post those 4 things: R_0 threshold, surveillance mechanism, time-to-detection, and shutdown plan then people can choose if they want to sign up for that risk.

Of course in the education case specifically, the real crux of the issue is the differential between the educators’ (generally older) risk tolerance and those of the students/the needs of students families (in the pre-university case).