You are arguing against a straw man, literally no one is suggesting that masks by themselves are a magic cure all. If masks don't have efficacy then why do hos

You are arguing against a straw man, literally no one is suggesting that masks by themselves are a magic cure all. If masks don't have efficacy then why do hospital staff wear them? The CDC's own guidance for air travel says that people in close proximity with sick passengers should wear masks. In an environment when anyone you encounter is likely to be sick wearing a mask makes sense as part of the overall strategy. [0] https://www.cdc.gov/quarantine/air/managing-sick-travelers/commercial-aircraft/infection-control-cabin-crew.html#general https://www.cdc.gov/quarantine/air/managing-sick-travelers/c...