> but also why the samples seem to teeter on the edge of superconductivity so frustratingly. Interesting! The uneven chunk shown in the original video was pro

> but also why the samples seem to teeter on the edge of superconductivity so frustratingly. Interesting! The uneven chunk shown in the original video was probably the best specimen they had after decades of attempts. When I first saw it, my first thought was, "geez, why not at least try to make it uniform"...