4 ms·

Can you expand on this? The cost of material for any coating is always very low, so I assume you are referring to some kind of technological advancement that ma

• Turing_Machine 10y ago
  "The cost of material for any coating is always very low" Well...not, historically, for diamond. :-) That's changing. Not being an expert in this field, I would guess that the barriers would lie primarily in tooling up the process to handle kilometers of material at a go, rather than making one-off surgical cornea scalpels. Now I'm wondering just how many kilometers of razor blades are produced annually. Many, I'm sure.