The official launch of EIP-4337 is an important milestone for EVM chains such as Ethereum to move toward account abstraction. Account abstraction will bring a highly modular account system. The proposal of EIP-4337 has made this modularization standard. The threshold for AA will be lower in the future, and each module can truly demonstrate a high degree of composability and programmability. . For users' more refined needs, it seems that some developer ecosystem will emerge to provide users with customized functions.