Slight change of subject. Well, two changes.
First up is another contribution to the Great Mask Debate. This is a video made by an OSHA specialist explaining about how mask laws effectively violate OSHA regulations. It's long, so here's the tl;dr: the reason that you can wear a surgical mask comfortably for long periods in an operating room is that extra oxygen is provided in the room to counter the reduction in O2 & increase in CO2 caused by the mask. Without this extra O2 support, you get headaches, nausea, fatigue, and general cardiopulmonary stress that can induce heart attacks in vulnerable people.
She does say one thing that's incorrect: Coronavirus particles are indeed 0.125 microns, but they are generally attached to stuff that's larger, around 3 microns. An N95 mask will stop these particles as it is effective down to 0.3 microns, but only if properly fitted and worn correctly. Surgical masks can filter in the range of 0.3 - 10 microns, so it will at best reduce the viral load - provided it is worn correctly and replaced when it gets wet or dirty. Anything else will generally not accomplish anything.
It's quite a long rant, but the core of the info is between 2 and 23 minutes.
https://youtu.be/8pr7nirqOzA
Next up is a shorter video by Ivor Cummins, the biomedical engineer I posted about previously who has been studying COVID data. He calls what's happening now a "casedemic" rather than a true epidemic, and shows parallels to the swine flu scare of 2008-2009. Very nicely explained in the video.
https://youtu.be/FU3OibcindQ
Enjoy!!