I'll quote from the linked-to page: > In both of these magnetic repulsion videos, keep in mind that magnetic repulsion and/or levitation are not, by themselves

I'll quote from the linked-to page: > In both of these magnetic repulsion videos, keep in mind that magnetic repulsion and/or levitation are not, by themselves, probative of superconductivity: a diamagnetic material such as pyrolytic graphite [16], can be made to levitate [19] in a magnetic field without being superconductive. See https://en.wikipedia.org/wiki/Magnetic_levitation#Diamagnetic_levitation https://en.wikipedia.org/wiki/Magnetic_levitation#Diamagneti... .