> But that's not how people use masks in real life, so they don't mean much.
I think saying "Using X is effective, but only if you actually use X" is obvious. The thing people want to know is "do masks stop the virus" which is an entirely different question from "How many people will wear masks", which is a different question from "What is the effectiveness of interventions to promote mask wearing"
I think saying "Using X is effective, but only if you actually use X" is obvious. The thing people want to know is "do masks stop the virus" which is an entirely different question from "How many people will wear masks", which is a different question from "What is the effectiveness of interventions to promote mask wearing"