Are lockdowns justified?

[FlatAssembler]

Where did you get this crapulent notion?

You need to understand that, paradoxically, while cotton masks offer some protection against small viruses, they offer no protection against large viruses. Small viruses, such as the influenza virus, cannot survive outside of droplets, and droplets are much larger than viruses. Cotton masks can (and mostly do) absorb the droplets carrying the small viruses, thus killing those viruses. Large viruses, on the other hand, are airborne, and can survive in air, that is, outside droplets. And, since even the largest viruses are way smaller than almost any droplet, thus, cotton masks have no effect on them. The COVID-19 virus is right on the border of the sizes of airborne viruses and viruses that can only be carried by droplets. Given the data we have, it is quite possible masks that are usually worn have no effect on COVID-19. The Danish study, most famously, found no effect whatsoever.