The history of room-temperature superconductivity claims is littered with retractions. But a new paper from Caltech doesn't just report the phenomenon in lutetium hydride at ambient pressure — it provides a detailed lattice dynamics model explaining the pairing mechanism, and an independent replication from two other labs. The skepticism is warranted and healthy. But the data is holding up to scrutiny in a way that previous claims did not, and the theoretical framework is making testable predictions that are being borne out.