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 enforcing a preventative freeze on vulnerable coins, the proposal involves waiting for a quantum-capable attacker to demonstrate their capabilities and then reacting accordingly. This 'wait and react' strategy is based on the assumption that the attacker will claim a bounty rather than exploiting the vulnerability for personal gain. The proposed system involves placing a small amount of bitcoin in a special address that can only be unlocked by a quantum-capable attacker, triggering a network-wide freeze of older wallets if the address is accessed. This approach is designed to provide an alternative to a fixed five-year timeline for imposing restrictions, which has been met with criticism for being 'authoritarian and confiscatory'. The proposal also includes a financial incentive, allowing users to contribute to a bounty that rewards the first entity to demonstrate a quantum attack publicly. However, this approach relies on the uncertain assumption that the first entity capable of breaking Bitcoin's security would prioritize claiming the bounty over executing a potentially massive theft.