Dankrad is the proponent of Danksharding and has proposed some groundbreaking ideas, making him an important figure in the history of Ethereum's expansion. His joining Tempo is completely normal; it's human nature to seek better opportunities for returns or to find a space to contribute. Ethereum's operation today no longer relies on any single individual (including Vitalik, though he is important). As long as the foundation of decentralization remains unshaken, according to the current roadmap, the leading position will still be maintained. In the future, more independent L1s will utilize Ethereum's security when they reach a certain level of development (in a sense, becoming L2s of the Ethereum ecosystem).

Actually, I'm more concerned about how to quickly resolve the L2 fragmentation issue.