[tetha]

> LK-99's published critical current is actually quite low, maybe because of sample purity issues. Hopefully it can be improved, otherwise we might be in the comical situation where room temperature superconductors exist and can be used but the cables end up being too thick and can't compete economically with copper.

This would btw be similar to a proof of P = NP, including the caveat that the best-case runtime of an NP-hard problem is a polynomial of degree 40000. It'd be polynomial runtime, but very much in the "ouch" and "infeasible" territory.