I think we have to be approaching the "thousands of miles per year" stage. The TF magnet demoed at CFS/MIT had 166 miles of tape and "contained close to 10% of

I think we have to be approaching the "thousands of miles per year" stage. The TF magnet demoed at CFS/MIT had 166 miles of tape and "contained close to 10% of the world’s supply of commercially available HTS" at the time. SPARC will have 18 of those magnets. While HTS magnets may be "state of the art" they are still substantially more expensive than LTS magnets and it will be a few years before they start showing up in MRI machines. https://www.psfc.mit.edu/sparc/hts-magnet https://www.psfc.mit.edu/sparc/hts-magnet