Before I was in my current business, about 11 years ago, I spent an entire year privately researching some unusual things that I discovered. They tie in to this present enigma. The unexpected sudden death of my husband determined I focus on providing for my family, so... research was put on hold.
I burned lots of fibers, to determine content of same. Cotton does NOT burn like these fibers do. One particularly large one, very coiled, burned like metal does. That test was done this week.
I, too, believe that we are not supposed to easily determine what the true nature of this "plague" is. The money connection, via all of the newly designed currency is the closest I have come to anything that makes sense. Lots of fibers fluoresce, so that test is not helping much. The "raised" area, in grainy-looking "gold" on the 10's, 20's, and 50's are yielding some interesting items.
At this point, am more interested in eradicating it from our bodies. When we are free of the irritation, suffering, and foreign substances coming out of our skin, I believe we will be able to focus a bit more intelligently on the source.