I know some people who react very fearfully each time a package comes to the door, or when a jogger passes ten feet away.
Maybe those people are right to have that response! (Suspend judgment for the time being.) But if they are right, and the risk is real rather than truly tiny, it is hard to imagine lockdown working. We can’t eliminate all risk, and we will end up with a fairly high percentage of the population infected fairly quickly. After all, danger is almost everywhere (in this view). If you run a pretty high risk of getting infected over the next month or two anyway, you might as well go buy some shoes at Nordstrom for your trouble.
What is noteworthy is that these fearful people tend to be very supportive of lockdown.
On the other side of the coin, some individuals defend the Swedish model. Presumably they believe that herd immunity can be achieved relatively quickly, and with a high upfront cost the medium- and long-term can be fairly safe, with a net gain overall.
Yet if you accept those presuppositions (suspend judgment for the time being), in fact you ought to behave in a very fearful manner. Just stay at home and wait until herd immunity arrives in late summer or whenever, and then go out and have all of your fun. Let the Nordstrom shoes wait!
Yet advocates of the Swedish model also seem quite interested in going out and frolicking in the shorter run.
In reality, mood affiliation may be playing a role here. People side with either “caution and fearfulness,” or with “openness and boldness,” and then both their theories and behavior follow accordingly.
In reality, the Swedish model advocates ought to behave quite cautiously and lockdown advocates should be willing to take more chances.