Archimedes Plutonium wrote:
Archimedes Plutonium wrote:
(snip everything else)




That experimental datum suggests several things.
(i) all materials at a cold enough temperature are superconductive and if
so, then superconductivity is a Classical physics phenomenon

Please think about what you're saying. "All" is a mighty big word. Does
sapphire superconduct or quarts or any insulators at low temperatures
and normal pressures?