I have been called a Nazi. Pretty mild compared to some of the things spinners have called me in the last couple of weeks -- and people wonder why I am not more respectful of spinners. When I use words like "silly" and "boss cow", it is instead of the really foul language tossed at me.
Many make personal attacks rather than disputing the concepts, technologies, and skills. I admit, that when something works very well, it is hard to demonstrate that it does not work. Thus, disputing the concepts, technologies, and skills would be more difficult than proving that 6, and only 6 angels, can dance on the head of a pin. That is, the dispute fails in the real world. All that is left is personal attacks.
I am to the point where I have to treat every personal attack as a blatant admission that I am correct, and my attacker simply cannot think of anything intelligent to say.
I do not expect modern hobby spinners to spin like a traditional trained professional spinners, because only a trained professional could do all those things. However, I think it is worthwhile to think what useful things the old spinners did, and how I can do those things. Yes, we do not have the tools and skills that they had, but with some thought, we can replicate some of their products.
The truth is that in the Old Kingdom of Egypt, the pyramids were built by professional builders, who were fed by professional bakers and brewers. The Pharaoh's shrouds (and likely other clothes) were made by professional textile workers. Spinning was a specialized task performed by professionals. Producing professional quality yarn products has a long history, just like baking and brewing.
In Classical Greece, some textiles were produced in the home or on estates by the women of the house, and some of those products were sold on a commercial basis. However, there was also an industry that was devoted to the full time and exclusive production of textiles by specialized professional textile workers - textile factories. There was enough trade between Greece, Asia Minor, Italy, Egypt and the Fertile Crescent that we can assume that the concept of such textile factories was widely known. Now, we know enough about industrial organization to know that specialized professionals can produce higher quality products than general labor including prison labor. Yes, specialized professionals in ancient Greece and Rome were producing superior quality textiles for the rich and powerful.
We know that Roman textile production methods were imposed on local producers as the Empire expanded, thus, the concept of specialized professional textile workers was known in Flanders in Roman times. When Romans left, Flanders become famous and wealthy by converting English wool into great textiles. England had the stable currency that was the envy of Europe, but Flanders became the most industrialized and densely populated region in the world as a result of its textile exports. We can assume that they remembered the Roman textile production system that included specialized professionals.
Now we know the Celts were spinning and weaving fine, but folks in Flanders were spinning and weaving finer. In the Medieval period, they were turning out great tapestries including threads intricately formed of gold and silver. Considering the silk, gold, and silver in the tapestries, we know that there were large scale textile factories producing fine textiles that were well beyond the resources of a spinster working by herself. These were large coordinated enterprises, that utilized specialized professional textile workers. This is a continuity with Greek, Roman, and later professional spinners. The technologies and skills to make the great tapestries did not pop out of nowhere, they evolved over centuries. This is not the common idea of the Medieval spinner. The myth is that the dark ages were dark, and everything exploded in the Renascence. Everything did explode in the Renascence, but the dark ages were not as dark as the myopic Victorians would have you believe. Were there women spinning in the home? Certainly. If you opened a bale of textiles as it was unloaded off of a ship in 1400, was the yarn spun in a home? Not likely, as the stuff spun in homes was for local consumption. Textiles that were worth exporting were spun in large, coordinated enterprises, by talented professional spinners.
If you think not, then post an image showing where you have plied a gold ribbon ( e.g., start with something like https://www.hooverandstrong.com/small-diameter-round-wire-specifications and planish flat ) around a yarn to give it more luster as was commonly done in tapestries. I do not know many hand spinners these days that can do that.