That seems to be the approach that MIT is taking with the SPARC reactor. They've been working on their ARC reactor design, and decided they wanted a smaller, e

That seems to be the approach that MIT is taking with the SPARC reactor. They've been working on their ARC reactor design, and decided they wanted a smaller, easy-to-make prototyping platform that they can run tests with. If I understand correctly, SPARC isn't designed for long-term use, or practical energy extraction. If they destroy one, they'll just make another. If I remember right, they're working on re-mountable magnet coils for ARC so that you can just de-solder the windings and take the whole thing apart and replace the inner lining when necessary. I don't think SPARC has that. https://en.wikipedia.org/wiki/ARC_fusion_reactor https://en.wikipedia.org/wiki/ARC_fusion_reactor https://en.wikipedia.org/wiki/SPARC_(tokamak) https://en.wikipedia.org/wiki/SPARC_(tokamak)