Superconductivity is a phase change phenomenon so it is often characterized as binary, but, as I understand it, superconducting materials have properties like t

Superconductivity is a phase change phenomenon so it is often characterized as binary, but, as I understand it, superconducting materials have properties like the maximum amount of current they tolerate before superconductivity breaks down that allow you to compare different materials as "more" or "less" superconducting.