Vitalik proposed a simple roadmap for L2 security and finality, pointing out three core directions for optimizing L2 security and finality

BlockBeats News: On March 29th, Ethereum founder Vitalik Buterin published a long article titled "A Simple L2 Security and Finalization Roadmap," which outlines the three core directions for optimizing Ethereum L2 security and finality Expand data capacity: Increase Blob space to 6 through Pectra upgrade, and expand to 72 (or gradually increase to 12-24) in Fusaka upgrade at the end of the year to meet L2 transaction throughput requirements; The hybrid proof system achieves fast finality: using a 2/3 multi signature mechanism (optimistic proof+ZK proof+TEE trusted hardware proof), if ZK and TEE are verified simultaneously, immediate finality will be achieved. Single verification requires a 7-day optimistic challenge period. The security committee can urgently upgrade the proof logic but is limited by a 30 day delay, balancing immediate finality and anti attack capabilities; Building a unified ZK proof aggregation layer: standardizing the entire ecosystem proof aggregation protocol, allowing multiple applications to share a single proof cost (such as 500000 Gas), significantly reducing ZK verification overhead, and promoting the popularization of L2, privacy protocols, and other scenarios. The goal of this roadmap is to achieve L2 cross chain bridging within 1 hour and reduce costs through a short-term hybrid verification mechanism, while gradually phasing out TEE dependencies with a long-term goal of full ZKization, ultimately establishing an efficient, secure, and trustless L2 ecosystem.