L1 improvements involve core protocol upgrades but risk increased centralization and require slow consensus among participants. In contrast, L2 solutions, like Rollups, significantly enhance transaction speeds and reduce costs without altering the L1 protocol. Currently, Ethereum processes about 13-24 transactions per second, while L2 solutions are scaling to around 337 TPS.
PeerDAS enhances L2 scalability by allowing nodes to perform partial data availability checks, easing bandwidth requirements and improving scalability and cost efficiency. This development makes Ethereum more accessible, particularly for smaller users. While concerns about security and decentralization persist, innovations like PeerDAS aim to uphold strong security guarantees and stimulate further decentralization by reducing barriers to entry for new participants.
In conclusion, while L1 enhancements are necessary, focusing on L2 solutions like PeerDAS may provide the scalability and efficiency Ethereum needs while maintaining its core principles of decentralization.