a recent work claims that in principle the upper bound to the critical temp of conventional sc at ambient p is ~100K, so this is a valid empirical step in that

a recent work claims that in principle the upper bound to the critical temp of conventional sc at ambient p is ~100K, so this is a valid empirical step in that direction https://arxiv.org/abs/2406.08129 https://arxiv.org/abs/2406.08129 The McMillan limit has been challenged before https://www.nosta.gov.cn/pc/en/awards/prize1/1460.shtml https://www.nosta.gov.cn/pc/en/awards/prize1/1460.shtml