《IOSG: Will Quantum Computing End Cryptocurrency?》 (Author: 0xjacobzhao) The core threat of quantum computing to blockchain is not the immediate destruction of networks but the long-term pressure it places on public-key cryptography, asset irreversibility, and private key self-custody models. As fault-tolerant quantum computers may approach practicality in the next 5–15 years, Web3 needs to proactively advance post-quantum cryptography migration.