” You can look at which regions introduced mask mandates when and see what statistical result that seems to give on the number of covid cases. There have been a

” You can look at which regions introduced mask mandates when and see what statistical result that seems to give on the number of covid cases. There have been an awful lot of studies on this topic” ...all of which written in the spring, when cases were declining across the northern hemisphere. Subsequently, we’ve seen cases go up around the world, and it doesn’t seem to matter much if they have mask mandates, high self-reported mask compliance, or not. This guy has amassed a huge collection of plots documenting the lack of impact of mask laws on outcomes: https://mobile.twitter.com/ianmSC https://mobile.twitter.com/ianmSC