Will quantum kill Bitcoin? Cracking a Bitcoin key takes ~1,200 reliable qubits. The best demo so far: 96 qubits. Quantum is a real problem. However, Bitcoin has time and options, even in the worst case. My full 26-minute presentation: Timestamps: 00:00 Will quantum kill Bitcoin? The short answer 01:15 Bits vs. qubits, explained simply 01:48 Why 1 reliable qubit takes ~400 physical qubits 02:28 The 1 algorithm that actually threatens Bitcoin 03:56 The only part of Bitcoin at risk 04:09 Why unspent addresses keep your key hidden 05:03 Satoshi's coins, reused addresses and Taproot 05:43 Long exposure vs. short exposure attacks 07:28 90% of Bitcoin is hidden or fixable 08:36 1,200 qubits needed. The record is 96. 09:34 Why 96 is further from 1,200 than it looks 10:57 Quantum's record: a 15-bit key your phone cracks in 1 second 12:20 51% to 70% of experts expect it within 15 years 12:56 Satoshi answered this in 2010 13:26 2 "quantum-proof" schemes that got broken 14:24 Bigger signatures could cut Bitcoin below 1 TPS 15:37 BIP-360 and 4 quantum-safe address designs 17:15 New quantum-safe signatures 17:42 Triggers: when to switch off old signatures 18:21 Freeze, slow down or leave old coins alone? 18:58 Rescue plans: Lifeboat and zero-knowledge proofs 20:58 Worst case: a quantum computer arrives tomorrow 22:34 "Safe at rest and safely move" 22:53 What happens to Satoshi's ~1 million coins? 23:41 Why I'd let the market absorb them 24:50 No need to rush. Keep building. 25:54 Bottom line: quantum is an engineering problem