If you're wondering what factors Boeing and United smoothed over in their study to get this result, here they are:

-It studied 767s and 777s, not the planes you actually fly on.
-It assumes everyone sits facing forward at all times without talking or turning their heads. https://twitter.com/aldotcom/status/1317158576910204934

-It assumes everyone wears a mask at all times, even though you eat and drink on planes.
-It only accounts for aerosols, not large droplets from sneezing or talking.
-It does study surfaces...but again, only aerosols from masked people, not direct spit droplets.

-It assumes every air vent is fully open at all times.
-It doesn't account for people getting on and off the plane or moving through the cabin.
-It doesn't account for the risk of being at the airport.

I don't have a SoundCloud, but you know what's even less safe (probably) than flying United? Flying a canvas biplane during WWII! And I wrote a book about women who did just that! https://bookshop.org/books/among-the-red-stars/9780062642752