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However, my claim is that a lot of progress on these issues doesn't need to be very public. Telling the public to do a thing sounds like the last step of the process, after researchers have already found a definitive solution.
I also agree that researchers have a limited amount of resources! But I don't think that funding a research area is necessarily zero-sum. If a company or government decides to throw extra money to start researching a thing, research on other things doesn't stop. As an example, when the NSF provides more funding for research, the number of PhD students goes up, since there are more research grants to go around.
> The high risk of bias in the trials, variation in outcome measurement, and relatively low adherence with the interventions during the studies hampers drawing firm conclusions
Source: https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD...
They asked people to wear masks, and they didn't wear masks, so they had trouble concluding things about masks.
This New York Times article prompted the Cochrane review to issue a statement:
> The Cochrane Review 'Physical interventions to interrupt or reduce the spread of respiratory viruses' was published in January 2023 and has been widely misinterpreted.
Source: https://www.cochrane.org/news/statement-physical-interventio...