Why gemstone metamaterial technology should work in brief
The idea of atomically precise gemstone based on-chip factories and their technology has faced major disbelieve and push-back in the past.
Here are the probably hardest arguments for this tech to be actually possible summarized in as brief a way as possible.
Regarding concerns about friction
Concerns about friction have been experimentally dispelled (not only theoretically).
Coaxial nanotubes are already experimentally accessible and they indeed show superlubricity.
- Newer (2017) work on friction (theoretical and experimental).
See: Evaluating the Friction of Rotary Joints in Molecular Machines (paper) - Theoretical estimations on frictions can be found in the book: Nanosystems
More info on and discussion of less common concerns here:
Regarding concerns about atom-by-atom pick-and-place assembly aka piezochemical mechanosynthesis
It was possible to demonstrate mechanosynthesis of relevant materials even with today's still very crude means (meaning blunt tips).
(wiki-TODO: add link to papers about crudely demonstrated mechanosynthesis on silicon)
It has been shown that the infamous finger problems like the sticky finger problem and the fat finger problem are invalid. See: A Minimal Toolset for Positional Diamond Mechanosynthesis (paper)
