Bitcoin's quantum defense is already being drafted.
BIP360 (P2MR — Pay to Merkle Root): migration path to post-quantum signatures. Users can pre-commit to a quantum-safe key inside a Taproot leaf.
BIP361: 'sunset plan' for ECDSA. Proposes a migration window before quantum computers become a real threat.
The timeline debate: most researchers say 10-15 years minimum. But the Bitcoin 'move slow' culture means BIPs need years to activate.
The window to prepare is now — not when Q-Day is announced.
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