Since there is some activity here, I'll mention two of the discussions that seem like a credible overall assessment of "masks work" to me: - A meta analysis of

Since there is some activity here, I'll mention two of the discussions that seem like a credible overall assessment of "masks work" to me: - A meta analysis of mask research indicating that they do work, and results to the contrary suffer from low statistical power [1] [2] - Studies on masks are not all born equal; some have better chances of adding to an overall sensible picture than others. Especially the implementation of concrete RCTs seems to have produced some discussion [3] [4]. I am not an expert on medicine, but I trust these authors and the statistical arguments make sense. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8499874/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8499874/ [2] https://statmodeling.stat.columbia.edu/2022/02/24/masks-block-some-fraction-of-viral-particles-from-dispersing-from-those-who-are-infected-and-from-infecting-those-who-are-susceptible-studies-that-did-not-find-masks-to-be-effective-had-limite/ https://statmodeling.stat.columbia.edu/2022/02/24/masks-bloc... [3] https://statmodeling.stat.columbia.edu/2021/10/22/how-did-the-international-public-health-establishment-fail-us-on-covid-by-explicitly-privileging-the-bricks-of-rct-evidence-over-the-odd-shaped-dry-stones-of-mechanistic-evidence/ https://statmodeling.stat.columbia.edu/2021/10/22/how-did-th... [4] https://royalsocietypublishing.org/doi/10.1098/rsfs.2021.0017 https://royalsocietypublishing.org/doi/10.1098/rsfs.2021.001...