  A recent preprint [arxiv:1807.08572] has reported the observation of room
temperature supercondutivity in a nanostructured solid composed of gold and
silver nanocrystals. Given the extraordinary and exciting nature of this claim,
it is worth examining the reported data closely. In this short comment I point
out a very surprising feature in the data: an identical pattern of noise for
two presumably independent measurements of the magnetic susceptibility as a
function of temperature.
