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

The Bitcoin community is considering a novel approach to addressing the potential threat of quantum computing to the network's security. Instead of imposing a pre-emptive freeze on vulnerable coins, the proposal involves waiting for an attacker to demonstrate their capabilities and then reacting accordingly. This 'wait and react' strategy relies on a 'canary' system, where a small amount of bitcoin is placed 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 restriction on older wallets. The proposal also includes a financial incentive, allowing users to contribute to a bounty that would reward the first entity to demonstrate a quantum attack publicly. However, this approach assumes that the attacker will claim the bounty rather than attempting to steal funds, which may not be a reliable bet. The proposal is designed to provide an alternative to a fixed five-year timeline for mitigating the risk of quantum computing attacks, which has been met with criticism for being 'authoritarian and confiscatory'. The new approach aims to balance the need to protect the network with the need to preserve the principles of decentralization and user control.