[dmitrybrant]

Assuming everything in the video is real, the only remaining question is: what is the actual temperature of that sample?

If all of this checks out, then it's a new era.

[jiggawatts]

Such tiny samples warm up to room temperature very quickly, on the order of a few seconds. In my experience, it's not possible to make such small pieces of YBCO superconductor levitate, they warm up too fast.

[topynate]

No frost on the sample either. The only way I can think of to fake this in camera is to make the "sample" out of a strong magnet, and make the "magnet" a hollow shell concealing a chilled piece of YBCO!

[Enginerrrd]

It looks convincing to my naive eyes, but how would you differentiate between this and diamagnetic levitation of something like pyrolitic graphite?

[cthalupa]

https://twitter.com/Andercot/status/1687748594563268608 seems to indicate that simply diamagnetic levitation cannot create the level of stability shown in this video.

[Arn_Thor]

No, the video contains no information about its conductivity.

[Arn_Thor]

Vindication https://arxiv.org/abs/2308.03110