Might be true, but it isn’t something that can be calculated with any confidence.https://twitter.com/RealSpikeCohen/status/1355104187437211648 …
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The fact something seems obvious and intuitive does not always make it right. Our human intuition was completely wrong about quantum physics, and often is wrong regarding small particles. Yes - masks do block some virus, but they may also nebulize some and more.
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I am not saying they do nebulize - but looking at the only RCT or looking at places that do have mask mandates vs ones that don't, I would not say that mask effectiveness is as obvious as gravity (even though it seems, intuitively, that they should help ).
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