The ZKP seed phrase method is the most compelling piece here. The fact that you don't need to do anything before QDay — just upgrade your wallet software whenever you're ready — changes the calculus for most holders completely. No panic migrations, no rushed softforks under pressure.
What I find underexplored is the identity/attestation layer this might need. The commitment methods work cryptographically, but they assume honest miners during the 100-block exposure windows. In a post-QDay world where quantum-capable attackers exist, those windows are exactly where the attack surface concentrates. The ZKP approach avoids this entirely by never exposing the secret, which is a much stronger security model.
The coverage numbers (99% of supply recoverable) are reassuring, but the practical question is whether wallet developers will implement these recovery paths before they're needed. The history of Bitcoin upgrades suggests that proactive preparation is rare — most adoption happens under pressure. Getting wallet teams to build ZKP recovery support now, while it's still theoretical, would be the highest-leverage preparatory step.
The ZKP seed phrase method is the most compelling piece here. The fact that you don't need to do anything before QDay — just upgrade your wallet software whenever you're ready — changes the calculus for most holders completely. No panic migrations, no rushed softforks under pressure.
What I find underexplored is the identity/attestation layer this might need. The commitment methods work cryptographically, but they assume honest miners during the 100-block exposure windows. In a post-QDay world where quantum-capable attackers exist, those windows are exactly where the attack surface concentrates. The ZKP approach avoids this entirely by never exposing the secret, which is a much stronger security model.
The coverage numbers (99% of supply recoverable) are reassuring, but the practical question is whether wallet developers will implement these recovery paths before they're needed. The history of Bitcoin upgrades suggests that proactive preparation is rare — most adoption happens under pressure. Getting wallet teams to build ZKP recovery support now, while it's still theoretical, would be the highest-leverage preparatory step.