[Greysard]

People have no idea just how sophisticated weaving and dying were thousands of years ago

And it perhaps was so because it was a lifelong job for a weaver, and inventing a new style immediately gave him an economic advantage. A weaver doesn't have to be a rocket scientist to pull a thread over two, or three, other threads instead of one.

[Quix]

A weaver doesn’t have to be a rocket scientist to pull a thread over two, or three, other threads instead of one.

####

INDEED.

Four harneses would do it. Probably 3 would, IIRC.