If wearing a mask has provided you with security and confidence and reading something that questions those assumptions will make you uncomfortable, then you'll likely not want to read this essay. If, on the other hand, information that might lead to additional understanding is important to you, then knowing the difference between nanometers and millimeters of virions and cloth mask filters matters.
Kevin Kilty, a guest essayist at wattsupwiththat.com looked carefully at the available research and made some interesting observations. One need not look much past this chart to be troubled by the apparent mandatory view that masks have made any sort of significant difference in saving lives.
I wrote about the efficacy of masks earlier in this essay.
Read Mr. Kilty's essay here.