Google Cuts Quantum Magic-State Errors 40-Fold on Willow

Google researchers published a Science result showing a 40-fold reduction in magic-state errors on the Willow quantum chip, reaching roughly 99.99% state fidelity. The work validates an error-correction technique that quantum resource estimates had already assumed would work. The story is a scientific milestone with no direct crypto price or protocol implications, though it feeds the long-running debate about quantum computing eventually threatening Bitcoin's ECDSA and SHA-256 security.