Vitalik responds to the topic of X-chain interoperability: Need to achieve L1 level anti censorship and trustless performance Ethereum co-founder Vitalik Buterin responded to Paradigm CTO Georgios Konstantopoulos' viewpoint on the X platform that "cross chain interoperability has been solved at the infrastructure level", stating that only when cross L2 operations can be comparable to native ETH transfers on L1 in terms of censorship resistance, trustlessness, and no need for intermediaries, can they be considered "truly solved". Vitalik calls this the 'no regression principle', emphasizing that the new system must retain the core properties of the original system, otherwise it cannot be considered as having sufficient completion.