Google’s Quantum Breakthrough Puts Bitcoin in Trouble? Analyst Says Not Today, but ‘Gap Is Getting Smaller’
Key takeaways
- Google’s quantum breakthrough is a step toward Bitcoin’s potential vulnerability, but current hardware is still far from the required scale.
- Google’s error‑rate reduction factor: 40
- Google’s accuracy: 99.9%
- Willow chip qubits: 105
What happened
Google’s latest quantum‑computing research shows a breakthrough that cuts the error rate of magic‑state generation by a factor of 40 and achieves 99.9% accuracy, potentially shrinking the gap between current quantum hardware and the 1,200‑1,450 logical qubits needed to break Bitcoin’s security. The Willow chip, announced December 2024, has 105 qubits, while IBM reports 70 logical qubits and QuEra has run algorithms with 96 logical qubits. IBM plans to reach 200 logical qubits by 2029 and 2,000…
Why it matters
Bitcoin’s long‑term security relies on the difficulty of deriving private keys from public keys, a task that would become feasible if a quantum computer could execute Shor’s algorithm on roughly 1,200–1,450 logical qubits. Google’s progress in reducing error rates makes that threshold more attainable, raising…
Short-term and longer-term
Short-term. Over the next few weeks, traders should watch for any updates on IBM’s 2029 roadmap and Google’s plans to scale the Willow chip.
Longer-term. For investors, the key question is whether the crypto community will adopt quantum‑resistant protocols before the hardware gap closes.