The only unproved formula sadness

[1/28, 12:02 PM] Harish Teach: That's why my most profitable job opportunity of opening superconducting railways in India hit a dead end after I couldnt prove high Tc superconductors theoretically maybe NPTEL lecture playlists now..

[1/28, 12:04 PM] Harish Teach: I can prove superconductivity of metals but never proved superconductivity of porcelein