1. So much of the mistrust swirling around mask recommendations from WHO and other authorities seems to have arisen out of confusion between receiver protection (your mask protects you from others) and source control (your mask protects others from you).

— Carl T. Bergstrom (@CT_Bergstrom) April 3, 2020

I think this is, largely, bullshit. This is after-the-fact ass-covering and not the way it happened at all.

The WHO (and others) stated that masks were completely ineffective. Period. That was the lie, and that most people knew was a lie.

Besides, good studies have shown that regular surgical masks do protect the wearer against infection, and at about the same rate as N95 masks.

So, the above is just…wrong, in several different ways.