When it costs us virtually nothing to do the right thing, though, I don't see how the precautionary principle applies. Usually we see that principle come up in arguments over nuclear power, large-scale environmental projects, major technological paradigm shifts, or medical therapies with a real potential for harm. It just doesn't seem to be in play here. Wear a mask in public, exercise reasonable social distancing practices when possible, and get vaccinated with something that has already been used successfully over a billion times. Is that really asking so much?

OK, understood. It's good to see where people are coming from on this subject, even when disagreeing.