Blockstream founder: Bitcoin Taproot reserves post-quantum signature support to alleviate quantum computing concerns

Blockstream founder Adam Back tweeted that Bitcoin's Taproot leaf nodes reserve support for future post-quantum (PQ) signature mechanisms, which can effectively mitigate quantum computing fears without the need to currently activate anti-quantum signature opcodes. He believes that the threat of quantum computing will not become a reality for at least several decades, and that anti-quantum signature technology will also introduce more compact and mature solutions in the future. At the same time, he pointed out that through existing Schnorr signatures or future anti-quantum signature schemes, Bitcoin users can safely migrate their funds without increasing current transaction costs. He emphasized that this mechanism can help the Bitcoin community prepare in advance while maintaining on-chain efficiency.