Ethereum co-founder Vitalik Buterin has said the blockchain's original vision for layer 2 scaling "no longer makes sense," according to a report by The Defiant. The remark, made publicly by Buterin, calls into question the framing that has guided Ethereum's technical roadmap since the network committed to a rollup-centric development path.

Buterin's phrasing marks a notable rhetorical shift for the figure most closely associated with Ethereum's scaling strategy. Since around 2020, the project's stated direction has been to push transaction activity onto layer 2 rollups — separate networks that execute transactions off the main chain and post compressed data or proofs back to Ethereum — while the base layer, or layer 1, serves as a settlement and data-availability layer.

That architecture produced the ecosystem Ethereum runs on today. Arbitrum, Optimism, Base, zkSync, Starknet and dozens of other rollups now process the majority of Ethereum-related transaction volume, with most of them built as either optimistic rollups or zk-rollups using validity proofs. Activity on these networks grew sharply after Ethereum's Dencun upgrade in March 2024, which introduced EIP-4844 and its dedicated data blobs, dramatically cutting the cost rollups pay to post data to the base chain.

Buterin's comment that the original layer 2 vision "no longer makes sense" signals that he sees the current arrangement — or at least the way it was originally conceived — as out of step with how the ecosystem has evolved. The Defiant reported the statement without indicating that Buterin proposed a specific replacement framework.

The remark lands amid a running debate over value accrual and centralization within Ethereum's layer 2 sector. Criticism has centered on several structural issues: sequencer fees accruing to rollup operators rather than to the Ethereum base layer; rollups that delay or deprioritize their planned progression toward Stage 2 decentralization, the milestone at which fraud or validity proofs fully constrain a single operator; and the rise of rollups launched by corporations and financial institutions that function more like proprietary blockchains than open, trust-minimized extensions of Ethereum.

It also follows a period in which Ethereum's roadmap has already been quietly reworked. Buterin and core developers have folded rollup-supporting features such as data availability sampling — via a planned "The Surge" phase of upgrades — into a broader stated goal of scaling both the base layer and layer 2 together, rather than treating layer 1 as frozen infrastructure. Proposals to increase the gas limit and discussions about layer 1 execution scaling have supplemented, rather than replaced, the rollup track.

For builders, the operational stakes are concrete. Teams deploying on rollups must weigh which networks will retain Ethereum alignment, which will decentralize their sequencers and proving systems, and which may drift toward independent chains with their own security assumptions. For rollup operators themselves, Buterin's framing raises the question of whether the "layer 2" label itself still carries meaning, given that many networks now market themselves as standalone ecosystems with their own tokens, governance and ordering infrastructure.

The comment does not change any protocol rule, and Ethereum's current upgrade pipeline remains focused on data-availability improvements and base-layer scaling. But Buterin's assessment carries weight precisely because he articulated the rollup-centric vision in the first place. If Ethereum's most influential voice now describes that vision as obsolete, the burden shifts to core developers and rollup teams to define what the network's scaling settlement should look like in its place — a conversation that will play out in Ethereum Improvement Proposals and roadmap discussions over the coming upgrade cycles.