Decentralized political economy --- Is this like feudalism?
more like prior to feudalism
Individualized artisan production -- Pre Industrial production?
post industrial
Whats prior to feudalism? Empires or tribalism? How would you unravel our modern systems to obtain this state?
No we are not going backwards. Material costs will trend towards zero relative to knowledge value. Thus we don't need to go backwards. This is a totally new way to organize ourselves distributed without top-down control, because the economics of production have suddenly been ameliorated by the computer and 3D printing.
Unless we make everything out of graphene I don't see that happening. You will still need to get the "ink"
All sorts of materials can be used in additive manufacture. Plastics, metals, glass, even chocolate. Even better there are bio-materials being developed which will be used to print organs for transplant etc.
Maybe some day we will understand how to utilize base particles to manufacture objects made from any solid material on the periodic table.