Meet Willow, our state-of-the-art quantum chip

Google's announcement of Willow, a quantum processor it presents as a step toward practical, large-scale quantum computing. The headline claim is in error correction: Google reports that adding qubits reduced the error rate ("below threshold"), reversing the usual problem where more qubits mean more noise.

The post also cites a benchmark in which Willow completed a computation in minutes that it says would take a classical supercomputer an impractically long time. Such benchmarks are contrived and not the same as breaking cryptography, so they bear on hardware progress rather than any near-term threat to bitcoin.

It is a vendor announcement, not an independent evaluation. It matters here as one data point in the contested question of how fast fault-tolerant quantum hardware is advancing.