[jcrash]

Multiple sources in USA claimed masks were not needed for people without the disease. Heavily implying it was useless.

I of course knew that was BS from the get-go. But nonetheless they did say it.

https://time.com/5794729/coronavirus-face-masks/

[epgui]

Yes, we used to think non-N95 masks (let alone cotton masks) wouldn't help, and then when we got more data to the contrary, we had to update this belief. That's unfortunate, but normal.

[p_eter_p]

Wait, people change their beliefs in response to new data? That's unpossible!