I don't think anybody can really say for now, but if the price of it comes down enough, there are two rough categories of things that can happen:
* devices that currently use superconductors don't have to use cooling anymore, and so become much cheaper to build and operate (MRI machines, certain sensors, high-power magnets for things like fusion research, big generators, big motors). This is a pretty solid bet.
* devices where superconductors would be an improvement, but currently don't make economic or practical sense. These are almost certain to crop up, but which ones will pan out is IMHO very speculative.
In the latter category, things like computing chips, more sensors, certain art works (sculptures with permanently levitating parts, how awesome!), smaller motors and generators seem plausible.
But there is likely whole categories of things we haven't thought of that could benefit from either zero resistance or rejecting magnetic fields.
* devices that currently use superconductors don't have to use cooling anymore, and so become much cheaper to build and operate (MRI machines, certain sensors, high-power magnets for things like fusion research, big generators, big motors). This is a pretty solid bet.
* devices where superconductors would be an improvement, but currently don't make economic or practical sense. These are almost certain to crop up, but which ones will pan out is IMHO very speculative.
In the latter category, things like computing chips, more sensors, certain art works (sculptures with permanently levitating parts, how awesome!), smaller motors and generators seem plausible.
But there is likely whole categories of things we haven't thought of that could benefit from either zero resistance or rejecting magnetic fields.