Why Masks Work BETTER Than Youd Think

Thanks to the HeisingSimons foundation for their support: (their COVID19 grants: ) Check out to explore and for references. This video is about how masks (whether surgical, or N95, or cloth) are counterintuitive and actually work much better epidemiologically than one might expect. Masks do doubleduty, and the fraction of interactions with masks is much higher than the fraction of peop