The last is no longer true https://www.nytimes.com/2023/06/23/science/room-temperature-superconductor.html https://www.nytimes.com/2023/06/23/science/room-temp

The last is no longer true https://www.nytimes.com/2023/06/23/science/room-temperature-superconductor.html https://www.nytimes.com/2023/06/23/science/room-temperature-... The preprint is on arxiv but I’m too lazy to find a link