It's not correct to say that 6 months ago "we" didn't know masks were important. All of East Asia knew they were important, and there was lots of research showing that masks, even cloth ones, were effective at mitigating transmission of coronaviruses like SARS. https://t.co/Id4sQqhwZu

— James Surowiecki (@JamesSurowiecki) August 11, 2020

That narrative — and how very wrong the “experts” were — is now being actively erased. Soon, it’ll become a “conspiracy theory.”

I’ve seen it happen before with other topics and it’s happening now.