Lopp backs BIP-361 to phase out quantum-vulnerable BTC
Bitcoin developer Jameson Lopp says it could be safer to freeze dormant, “quantum-vulnerable” BTC rather than rely on future recovery by quantum hackers. He points to BIP-361, a proposal that would phase out legacy cryptographic signatures and, over time, invalidate spending from wallets that cannot upgrade. Lopp estimates about 5.6M BTC are long-dormant.
He emphasizes the idea is disliked and intended as an emergency contingency, not a permanent policy. Still, critics argue that a Bitcoin freeze would conflict with Bitcoin’s core promise of unconditional user control, and could set an interventionist precedent.
For traders, the market impact is likely dominated by sentiment: if BIP-361 consensus advances and migration mechanics look workable, uncertainty may fade. But any credible narrative around quantum recovery could trigger fast “freeze vs not” panic even without immediate large selling.
Neutral
Lopp’s remarks increase debate around a potential Bitcoin freeze via BIP-361, which is mostly a narrative and policy-consensus story rather than an immediate on-chain event. In the short term, “freeze vs not” headlines can raise volatility and fear—especially if traders believe quantum recovery could be possible—so the effect on BTC sentiment can be sharp even without actual selling. In the long term, the impact depends on whether BIP-361 moves toward consensus and whether migration and signature changes are clearly specified enough for users to upgrade safely. That uncertainty argues against a clear bullish or bearish directional bias on BTC price, making the expected net impact neutral.