When I was in high school, I wrote an article for the school newspaper on teenage slang. (IIRC 'gooder'
vs 'badder'). This was back in the middle of the 20th Century. I concluded with "Magnetohydrodynamics -- not used in polite conversation."
The subject
went dark for decades, until Hunt for Red October (1984). In 1985 Japan instantiated a full sized vessel;
Why wasn't there a second or third? Maybe because startup and shutdown each took 14 days? It was scrapped in 2016.
This sounds like an opportunity for 'room'-temperature superconductors, and the Noyron Large Engineering Model software.