Vitalik Buterin, the founder of Ethereum (ETH), has shared his insights into how blockchain projects, particularly layer-2 solutions, can be built to achieve success. In a post on X, Buterin noted that “The best way to build an L2 is to lean into the L1’s offerings.”
Buterin argues that the most effective way to build a layer-2 blockchain is to rely on layer-1 offerings. These include the security, data, censorship resistance and proofs provided by the base layer. This is critical, as it allows layer 2s to focus on sequencing, which involves ordering transactions and verifying their validity. For instance, on Ethereum, this happens via zero-knowledge proofs or fraud proofs. Buterin argues that this model achieves efficiency and faster performance. It also eliminates the need for users to build trust in new validators. He highlighted that if a layer 2 (L2) fails, users are confident that the layer 1 (L1), in this case, Ethereum, can act as a safety net.
Buterin suggests that, in the future, many layer 1s may follow this blueprint and transition to becoming layer 2s on Ethereum. He maintains this is the blockchain vision that many thought impossible in the early days. The aim is to ensure scalability, sustainability and ease of access for developers. Following Celo’s transition, it has gained traction and recognition from industry players. As reported, Celo flipped Tron in the number of daily active addresses, highlighting its growth.
Buterin, the co-founder of Ethereum, recently broke his silence to discuss the core requirements for building Layer 2 (L2) solutions. Buterin emphasized that L2 solutions must prioritize security, scalability, and decentralization. He highlighted that security is paramount, as any compromise in this area could undermine the entire ecosystem. Scalability, he noted, is crucial for handling the increasing number of transactions without compromising performance. Decentralization, on the other hand, ensures that no single entity controls the network, maintaining its democratic nature.
Buterin also touched on the importance of interoperability, stating that L2 solutions should be able to communicate seamlessly with other blockchain networks. This would enable the transfer of assets and data across different platforms, fostering a more interconnected blockchain ecosystem. He further stressed the need for user-friendly interfaces, as the complexity of blockchain technology often deters new users. Simplifying the user experience could attract a broader audience and drive wider adoption.
The discussion on L2 solutions comes at a time when the Ethereum network is facing significant challenges, including high transaction fees and network congestion. L2 solutions are seen as a potential remedy, offering a way to offload transactions from the main Ethereum network, thereby reducing congestion and lowering fees. Buterin’s insights provide a roadmap for developers and stakeholders looking to build robust L2 solutions that can address these issues effectively.
Buterin’s comments also underscore the evolving nature of blockchain technology. As the industry matures, there is a growing recognition of the need for solutions that can scale while maintaining the core principles of security and decentralization. His emphasis on interoperability and user experience reflects a broader trend towards creating more integrated and accessible blockchain ecosystems.
In conclusion, Buterin’s remarks offer valuable guidance for the development of L2 solutions. By focusing on security, scalability, decentralization, interoperability, and user experience, developers can create solutions that not only address the current challenges of the Ethereum network but also pave the way for future innovations in the blockchain space. 
