[awwkaw]

What really annoys me is that we have not seen a single reproduction of LK-99 yet.

A lot of the arxiv papers will measure PXRD. Then they will say stuff like "the position of the peaks is almost identical" (https://arxiv.org/pdf/2308.03110.pdf) (emphasis is mine).

Anyone who knows anything about diffraction knows that almost identical means different.

The original paper specified that LK-99 requires a 0.48% contraction of the unit cell volume. if you are off by a small fraction (either from over- or under-doping) the sample is not LK-99. it is something different.

so far all "reproduction" papers have stated that they created the wrong material, then gone on to show that it does not behave as a superconductor.

I'm not saying that LK-99 is definitely a room temperature superconductor, only that I have not seen a single reproduction attempt actually report the same unit cell parameters as reported by the original paper. Thus not a single reproduction attempt has thus far reproduced LK-99.