[Vitalik: Mature Solutions for Post-Quantum Cryptography Technology] Foresight News live report: Vitalik stated during a conversation with Xiao Feng that there are already mature solutions for post-quantum cryptography technology. He prefers the GeoHash algorithm because Ethereum aims not only to be a post-quantum resistant chain but also to resist AI. He also mentioned that recent hacking incidents have been very severe, and improving the reliability of smart contracts through AI and formal verification methods will be very important in the future.