[Nic Carter: Quantum 'Canary' Mechanisms Struggle to Provide Adequate Warning for Bitcoin] Deep Tide TechFlow reports, on May 1, Nic Carter published an article stating that the risks posed by quantum computing to Bitcoin are difficult to obtain clear warnings through 'canary' mechanisms, including methods such as incremental difficulty key challenges, quantum bounty addresses, and Satoshi's early coins. He believes that once quantum computers definitively break through medium-scale ECDLP, it may only be a matter of months before secp256k1 is threatened, while deploying post-quantum signature schemes and migrating vulnerable UTXOs on Bitcoin could take years. Therefore, Bitcoin and other blockchains may need to proactively advance post-quantum signature transitions in the absence of clear on-chain signals.