What law of aerodynamics did that microdroplet or airborne virus particle study to deposit itself on the mask media instead of follow the path of lower resistance around the mask?
A sense of virus altruism?
I have worked in an industry for 30 years that involves protection from airborne particulate material. Surgical wal-mart style cotton masks are not allowed on site. Full face respirators with a semi-rigid seal that can pass a quantitative fit test and a negative pressure test, do work.
You are fooling yourself if you think a cotton sheet mask works in any real sense except security theater. Go buy some more toilet paper.
A key point many are missing. My perceptive wife said that all those wearing masks that she had seen had gaps where the mask goes over the bridge of the nose.
I don't have a large hooter and just now tried on a leftover mask the hospital gave me, and sure enough, there's a 1/4" gap.
Gotta love all those displays of a false sense of security and virtue signalling.