In the rapidly evolving blockchain world, Ethereum’s co-founder Vitalik Buterin is calling for a bold rethinking of Layer-2 (L2) architecture — one grounded in minimalism, not maximal ambition.
Amid mounting pressure on smaller Layer-1 (L1) networks to maintain relevance, an emerging trend is gaining traction: rather than competing with Ethereum, many L1s are choosing to integrate into its ecosystem as Layer-2s. This shift has prompted a larger discussion about the right approach to L2 design and Buterin’s message is clear: less is more.
L1 to L2: The New Evolution
The discussion was ignited earlier this week by Jason Chaskin from the Ethereum Foundation, who noted that L1 chains like Celo are transitioning to become L2s on Ethereum. The move, he explained, helps simplify network architecture, reduce inflation, and speed up performance, all while gaining access to Ethereum’s robust developer ecosystem and secure infrastructure.
Celo’s migration is just one example of what Chaskin believes could become a broader movement: smaller L1s finding greater longevity by plugging into Ethereum as L2s rather than struggling to survive independently.
Buterin’s Blueprint: Strip It Down
Vitalik Buterin soon joined the dialogue, offering a more technical yet elegantly simple — approach to how these L2s should be structured.
His proposal? Don’t rebuild what Ethereum already provides. Instead, leverage Ethereum’s unmatched strengths, security, decentralization, and data availability and design L2s that act purely as a sequencer and a prover.
This minimalist framework strips away the complexity many networks try to build in, focusing only on ordering transactions (sequencer) and proving their validity (prover). According to Buterin, this light-touch model not only boosts efficiency but also revives the original vision of trust-minimized blockchain systems that early enterprise blockchains failed to deliver.
“Now, with Ethereum L2s, you can achieve it,” he wrote. “We’ve already seen Ethereum’s L1 features protect users when L2s malfunction — that safety net is real.”
A Future Anchored in ZK-Proofs
Buterin’s comments come alongside the Ethereum Foundation’s announcement of its roadmap toward full zkEVM integration. This ambitious upgrade will allow Ethereum nodes to validate transactions using (ZK-proofs), removing the need to re-execute transaction blocks. Instead, validators will simply check compact cryptographic proofs — dramatically improving scalability and efficiency.
