> Anyone with a brain could understand that if people weren't in a position to breath on each other, the virus wouldnt spread as quickly.
This can be rephrased as "it's just obvious/common sense that lockdowns work" and it's a really common argument, but wrong.
Unfortunately there's nothing really obvious or intuitive about viruses. The Diamond Princess cruise ship showed right at the start that lockdowns would be ineffective. They locked down everyone on the cruise ship the moment the first outbreaks were confirmed, confining them to cabins. In the transmission model that lockdowns rely on that would have ended the outbreak immediately. But it didn't, instead people kept coming down with COVID completely at random, scattered all over the ship. From this two things could be concluded:
1. SARS-CoV-2 is airborne, that is, it can move long distances in gaseous clouds, i.e. through air ducts, by hanging in the air for long periods and other ways that lockdowns can't affect.
2. The clouds must have circulated through the ship, yet not everyone was susceptible.
This wasn't a terribly surprising result because investigators had concluded the same things about SARS-1 back in the day. SARS-1 clouds were able to move within apartment buildings even when everyone was locked down in their apartments, apparently via air ducts.
Some people pointed out at the time that this would render lockdowns irrelevant right back in March 2020, and were ignored, but time has proven them right. There's no correlation between lockdown severity and results.
This can be rephrased as "it's just obvious/common sense that lockdowns work" and it's a really common argument, but wrong.
Unfortunately there's nothing really obvious or intuitive about viruses. The Diamond Princess cruise ship showed right at the start that lockdowns would be ineffective. They locked down everyone on the cruise ship the moment the first outbreaks were confirmed, confining them to cabins. In the transmission model that lockdowns rely on that would have ended the outbreak immediately. But it didn't, instead people kept coming down with COVID completely at random, scattered all over the ship. From this two things could be concluded:
1. SARS-CoV-2 is airborne, that is, it can move long distances in gaseous clouds, i.e. through air ducts, by hanging in the air for long periods and other ways that lockdowns can't affect.
2. The clouds must have circulated through the ship, yet not everyone was susceptible.
This wasn't a terribly surprising result because investigators had concluded the same things about SARS-1 back in the day. SARS-1 clouds were able to move within apartment buildings even when everyone was locked down in their apartments, apparently via air ducts.
https://www.nejm.org/doi/full/10.1056/NEJMoa032867
Some people pointed out at the time that this would render lockdowns irrelevant right back in March 2020, and were ignored, but time has proven them right. There's no correlation between lockdown severity and results.