To add to this, Sweden isn't seeing the big surge that France and Spain are seeing (among others, including Belgium and the Netherlands, both at or near record

To add to this, Sweden isn't seeing the big surge that France and Spain are seeing (among others, including Belgium and the Netherlands, both at or near record highs). Sweden's cases have dropped lower and have stayed there. Given their comparatively open approach to the virus, they should be seeing a surge. While it's possible it'll show up in the near future as it again spreads across parts of Europe, I think it's also plausible they've reached a partial herd immunity. The commonly repeated premise that you need ~60% to reach herd immunity is plainly false, that's a calculation meant for a vacuum. In reality people aren't numbers on a sheet or living in a vacuum, all people don't behave the same way, don't spread a virus the same way, aren't all similarly at risk, some large percentage of the population may already have immunity thanks to prior exposure to other coronaviruses, and so on.