https://techcrunch.com/2024/01/04/yet-another-superconductor-claim/

If you’re someone who loves an internet hype cycle, good news: There’s a new group of scientists who claim to have discovered a near-room-temperature superconductor.

People on X, formerly Twitter, and Hacker News and all the other places science enthusiasts post are getting worked up about a new material described in a paper that was posted on Tuesday to arXiv, the pre-print server. (It should be noted that most of these people do not appear to be scientists let alone condensed-matter physicists.) In the paper, the Chinese team says the material exhibits one of the properties of superconductors at temperatures as warm as -23˚ C. That’s not room temperature, but it’s much easier to maintain than existing high-temperature superconductors, which have to be at around -170˚ C.