The thing that has really surprised me is that public health officials are expressing so much confidence that masks work, despite the evidence being quite meh [

The thing that has really surprised me is that public health officials are expressing so much confidence that masks work, despite the evidence being quite meh [1]. There have been many attempts to demonstrate that masks prevent transmission of flu and overall the results are weak/negative. The focus on masks has trade offs. People have finite attention, so the focus on masks diminishes the attention we apply to other interventions. [1] https://www.publichealthontario.ca/-/media/documents/ncov/covid-wwksf/what-we-know-public-masks-apr-7-2020.pdf?la=en https://www.publichealthontario.ca/-/media/documents/ncov/co...