Summary: https://slatestarcodex.com/2020/03/23/face-masks-much-more-than-you-wanted-to-know/ There’s been recent controversy about the use of face masks for protection against coronavirus. Mainstream sources, including the CDC and most of the media say masks are likely useless and not recommended. They’ve recently been challenged, for example by Professor Zeynep Tufekci in the New York Times and by Jim and Elizabeth on Less Wrong.
