Very interesting. The method they used is impractical for actual use but it’s important that they were able to do it at all, if it holds up. Once something seemingly impossible is done all of a sudden the breakthroughs seem to explode rapidly. All the geniuses who didn’t want to waste their time suddenly say ‘hmmm, so it’s feasible then? Let’s see what I can do with that...’ and bang, the world changes.
Everything is impossible until somebody does it................
You’re correct. The small leaps along the way get things going in a direction and before you know it good things happen.
Like ships: Rowing->sailing->steam power->oil power->nuclear power. There’s a larger progression that will happens as the incremental stuff gains momentum to bring about the major advancements.
Now about that flux capacitor and time travel... :-)
By and large, the best engineers and scientists go where the money is being spent. The bit payoff for ambient temperature superconductivity is the replacement of the electrical trunk lines and grid, a move that will more than double its effective generating capicty.