A high temperature superconductor at 500GPa is probably even less practical than a cryogenic superconductor. So for this to be exciting we first need the even

A high temperature superconductor at 500GPa is probably even less practical than a cryogenic superconductor. So for this to be exciting we first need the even more exciting news that MH is metastable so that we can release the pressure. Then we can find out if we have a high temperature, high explosive, superconductor. Even that is probably not of practical use. But by gum! It'd be fun.