> won't permit him to expose ten thousand people to an infectious disease.

How low of an IFR would it take before you accepted that exposure? Would incidentally exposing them to the common cold be ok?

It's not the infections that matter - it's the deaths. And, with Tesla's 10k factory workers and the assumption that they're heathy people between 20 and 60, you'd see somewhere between 1 and 50 deaths. (Assuming that Italy's health care worker CFR is representative) Is this worth it? I don't know. But there's a point where it would be.