I still don't see it as all theatre—maybe I just see it more like a probability function. 100% of people won't use them properly, no matter how much instruction or how foolproof the design is (because one way to fix improper usage is to improve designs instead of blaming the user). Will 50%? Maybe 10%? OK, if 10% use them 100% properly, what if another 30% use them at 50% effectiveness? I'm making up these percentages but just showing that I don't believe it's all theatre if not 100% of the people comply 100% perfectly.
So yes, people can get infected at half an hour. Are their odds much higher to get infected at 5 hours than 0.5 hours? I'd assume yes.
Heck, even people who wear it over their mouth but don't cover their noses, yes, they're potentially leaking covid out of their nose and breathing it in thru their nose. But if they cough, I imagine a percentage of the covid comes out their mouth and gets trapped in the mask...even despite them not wearing it 100% properly.
I'm saying that some of it may be theatre, or maybe much of it is (by theatre being ineffective but trying to appear effective), but I don't think it's all theatre.
So yes, people can get infected at half an hour. Are their odds much higher to get infected at 5 hours than 0.5 hours? I'd assume yes.
Heck, even people who wear it over their mouth but don't cover their noses, yes, they're potentially leaking covid out of their nose and breathing it in thru their nose. But if they cough, I imagine a percentage of the covid comes out their mouth and gets trapped in the mask...even despite them not wearing it 100% properly.
I'm saying that some of it may be theatre, or maybe much of it is (by theatre being ineffective but trying to appear effective), but I don't think it's all theatre.