ChainCatcher message, Ethereum founder Vitalik emphasized the importance of Ethereum's multi-client philosophy in maintaining its security and decentralization in his latest article "How Will Ethereum's Multi-Client Philosophy Interact with ZK-EVM?". Ethereum does not have a default "reference client" that everyone runs; instead, there is a collaboratively managed specification with multiple teams implementing the specification (i.e., "clients"). Vitalik highlighted the significance of ZK-EVM as a new transition that utilizes SNARK proofs executed by EVM and actively supports second-layer protocols like ZK Rollup on the mainnet.However, the challenge of ZK-EVM lies in how it interacts with the multi-client philosophy. To address this issue, Vitalik suggested that each client should wait for a proof compatible with its own implementation before accepting a valid block. This approach sacrifices some benefits of the multi-client paradigm, but it is ideal until it can be formally proven that all ZK-EVM implementations are equivalent to each other. ZK-EVM will become the third client of Ethereum, which is crucial for the network's security and decentralization. However, this approach also faces challenges, such as handling malicious attackers who may delay block publication and the latency challenges posed by proofs that are valid for one client. (source link)