Thread on LK-99 and atomically precise manufacturing
twitter.com
twitter.com
The thread comes off as a pitch for a startup, hence my skepticism.
I still hold out hope that this weird idea I heard of from a company that failed in the 2008 crash will work out... the ultraconductor. It's conductive fibers that grow from polar plastics if you subject them to a large voltage gradient and UV in optimal conditions. I suspect they are unidirectional superconductors, but I'm just a guy on the internet, likely wrong.
Here's the patent - https://patents.google.com/patent/US5777292A/en
Working with plastic, very slow growth rates, and UV light and a few hundred volts sounds way easier than vacuum furnaces, etc.