Satoshi’s 2010 Note on Quantum Computing and Bitcoin’s Long-Term Security

Concerns about whether quantum computers could eventually compromise Bitcoin have resurfaced, as discussions focus on signature security and the network’s ability to adapt. The debate points to Satoshi Nakamoto’s only public comment from 2010, outlining how Bitcoin could respond if quantum breakthroughs arrived suddenly or gradually. Analysts also cite today’s hardware limits, contrasting ~6,000-qubit systems with estimates that far more stable qubits would be needed to threaten modern cryptography.