Comment by gfodor

The substance produced from the paper isn't a superconductor. While extremely unlikely, there is still a chance that LK-99 is a superconductor, but the paper itself did not sufficiently describe the method needed to make it so as to replicate it properly. We will know the resolution to this once the sample from the original researchers is assessed by a third party, of which there are presently at least two to my understanding doing this right now.