I wanted to start a separate thread on masks. I started to bake it into my other, longer thread but decided to split it out. I really wish we had better data and a unified message on masks. It hasn't been clearly explained how masks reduce spread and by how much. It seems like it should be obvious but you have a lot of political motivation around masks. You've got people parsing the micron size of an individual organism of the virus and claiming because its smaller than the micron size of the weave of the mask, masks do nothing. You've got people claiming masks give you CO2 poisoning. Yet masks are worn for HOURS (8-12 plus) by surgeons doing long, complex surgeries and they clearly both work to reduce infection and don't kill the surgeons. I've tried to explain to people the mask is reducing the distance of the spread of the water vapor coming out of your lungs when you exhale. The virus is in that vapor. I don't need to stop the one organism of virus, that's not how it works. I just need to stop or contain the vapor. And it doesn't have to be perfect. Let's say we're in a ballroom of 300 people mingling for 2 hours (post business conference happy hour) with 2 infected people. With no masks, 100 people might get COVID. With 50% masks, 20 people might get COVID and with 100% masks, 2 more people get COVID. The ultimate death rate just given the statistics might be 3 people with no masks, 1 person with 50% masks and zero people with 100% masks. This is just an example and those infection rates might not be accurate at all but masks do reduce infection and it doesn't have to be a gas mask. I just did this in my den in front of my computer right now. Put your hand a foot in front of your face and go hhhhhaaaaa like you would if you were checking if you have bad breath. I can clearly feel my breath on my hand a foot away. Now I put one of those cheap ubiquitous blue polypropylene fabric masks on and do the exact same. I can't feel my breath 1" from the mask. Is some air getting out? Of course. It is not an air-tight filter. But it is filtering, re-directing and generally shorting the plume of air. This video is a little long but makes the point pretty clear. Not that he's not wearing a respirator/gas mask. Its a simple fabric mask. Fast forward to 3:10 if you just want to see the imaging of the air flow. Around 2:20ish he addresses the fact that the virus is smaller than the mask weave. If our administration had put together a 30 second version of this (this is your brain on drugs style) and ran ads encouraging mask wearing, I sincerely believe we'd be in a much better place.