Wired article about the air pollution experts, epidemiologists, and physicists who were worried about airborne spread right from the beginning:

60 year old Scientific Screwup

WHO and CDC (and thus everybody else) claimed the larger particle size of droplets meant you just needed to stay 6 feet away and you would be safe. But that's based on 60 year old mainstream thoughts on TB spread. Very early on some people thought TB could also spread via sub-5 micron particles that can float on air for hours in enclosed spaces with poor ventilation. Took decades, but the medical establishment came around. That's why we have isolation positive pressure wards for TB patients. CDC and WHO based their recommendations on that 60 year old TB data, without looking at the latest correction (ie 1950!). So just lately they have announced that you can catch it inside, just by breathing air from active spreaders even if you are quite some distance away.

But we already knew this from contact tracing reports about a wedding where the bride and groom table all caught it, adjacent tables caught it less, and the next tables over caught very little. All tables were at least 6 feet apart.

We're flying electric helicopters on Mars yet you can't turn on your clothes dryer in Texas. That's because scientists are in charge of Mars, and Republicans are in charge of Texas.