Trezor CTO Outlines Trade-offs in Bitcoin Post-Quantum Signature Scheme

The significance here is less the warning itself than who is voicing it: a hardware-wallet CTO framing quantum resistance as an engineering cost problem rather than a feature to ship. That shifts the debate toward wallet makers, who would bear the migration burden and the trade-offs the comments leave unnamed. The absence of specifics — which scheme, which costs — is itself the gap worth watching; concrete detail from Trezor or peers would signal how close this is to a practical roadmap rather than an acknowledged risk.