First steps of how LK99 could be used - embed superconducting nanocrystals into things. Given how insanely much metals we use for conductors I think it will be quite a while until this sees any kind of mass usage. But wow what an industrial investment boom we would be part of if LK99 actually works.
I also think it is very interesting that this entire class of superconductors will, as far as I can tell, be illegal in the EU for most application due to RoHS:
The article seems to imply it's re-evaluated regularly (and additive rather than blanket ban although I'm not sure if that's relevant):
> It requires periodic re-evaluations that facilitate gradual broadening of its requirements to cover additional electronic and electrical equipment, cables and spare parts
I also think it is very interesting that this entire class of superconductors will, as far as I can tell, be illegal in the EU for most application due to RoHS:
https://en.wikipedia.org/wiki/Restriction_of_Hazardous_Subst...