Wu Shuo learned that CZ posted a document on the X platform to explore the pros and cons of choosing L1 or L2 blockchain for AI projects. After communicating with a founder, he said that if the core of the project is to use blockchain to optimize the AI ​​economy rather than improve the blockchain itself, although L1 provides higher sovereignty and decentralization, it requires self-built nodes and validator networks, which is a large and relatively isolated workload; L2 saves these burdens, relying on L1 (such as Ethereum) to directly use DEX and derivative tools, with limited spillover of value. CZ asked if L1 is “cooler” than L2 and was curious if the community’s perception of this old topic has changed.