The coventional wisdom in epidemiology that diseases can be separated into those spread by aerosols and those spread by droplets. This turns out to be complete

The coventional wisdom in epidemiology that diseases can be separated into those spread by aerosols and those spread by droplets. This turns out to be complete nonsense based on a single flawed decades old study claiming particles larger than 5 microns can't stay in the air for an extended period of time, when the actual limit is orders of magnitudes higher. The failure of the public health establishment to realize this reflects long-standing issues the field has with appreciating research done by experts in other fields. Aerosol scientists knew all this, and tried to tell them. Luckily the CDC has admitted it's mistake, though they haven't properly updated guidance accordingly. https://www.wired.com/story/the-teeny-tiny-scientific-screwup-that-helped-covid-kill/ https://www.wired.com/story/the-teeny-tiny-scientific-screwu...