Japan and Philippines might have a slightly different economy and culture.Not cherry picking. Reasoning. New Zealand got hit very late and to their credit effectively shut down their borders (remember when Trump partially tried to do that....New Zealand even left its own citizens stranded overseas until they could set up quarantine centers to get people back home off island). South Korea has very different policy outcomes. What I'm trying to do is filter out the circumstances to compare masks to masks. Japan and the Phillipines are perfect....they have similar policies and similar mask usage, but a very different history of coronavirus exposure.
You just want to ignore everything that distrupts your image that something (anything) might work and might control it. And the harder someone tries to tear that blue pill out of your hand, the tighter you clutch at it, crying for dear life.
There are people who do this for a living, you know. You might try listening to them. They have certain tricks. For example, they don't do paired country comparisons between rich elderly nations and impoverished youthful ones.