Bitcoin Developers Propose 'Wait and React' Strategy to Counter Quantum Computing Threats

The Bitcoin community is considering a novel approach to address the potential risks posed by quantum computing: instead of imposing a preemptive freeze on vulnerable coins, the network would only take action if a quantum-capable attacker demonstrates their capabilities. This 'wait and react' strategy is outlined in a recent proposal by BitMEX Research, which involves placing a small amount of bitcoin in a special address that can only be unlocked by a quantum-capable attacker. If the address is accessed, it would trigger a network-wide freeze of older wallets. The proposal also includes a bounty system, where users can contribute bitcoin to incentivize the first entity to demonstrate a quantum attack, rather than exploiting the vulnerability for personal gain. This approach is designed to provide an alternative to the controversial BIP-361 proposal, which would impose restrictions on a fixed timeline regardless of whether quantum computers are capable of attacking the blockchain. Critics of BIP-361 argue that it undermines Bitcoin's core principle of private key ownership and could lead to the confiscation of funds. The new proposal aims to balance the need to protect the network with the need to preserve user autonomy and flexibility. However, it relies on the assumption that the first entity capable of breaking Bitcoin's security would claim the bounty rather than attempting a large-scale theft. This assumption has sparked debate, as it seems to contradict the network's historical emphasis on preventing worst-case scenarios and minimizing the risk of catastrophic events.