Vitalik says many L2 chains lack purpose

TLDR

Vitalik Buterin now argues that many Ethereum layer 2 networks no longer make sense as generic "scale Ethereum" chains and must instead prove a clear, specialized purpose.

1. He says the original rollup-centric roadmap "no longer makes sense" as Ethereum (ETH) scales and many L2s remain centralized behind multisig bridges.
2. He urges L2s to stop being "Ethereum but cheaper" and instead specialize in niches like privacy, ultra-low latency, or specific application ecosystems.
3. For users and investors, this shifts focus toward L2s with transparent security models, real decentralization progress, and a clearly articulated role in the ecosystem.

Deep Dive

1. Vitaliks Core Critique

In a recent essay and follow up comments, Buterin said Ethereums original vision of L2s as the main scaling engine "no longer makes sense" given how the base layer is now scaling and how slowly many L2s are decentralizing. He specifically warned that a "10000 TPS EVM" whose link to Ethereum is just a multisig bridge is not really "scaling Ethereum," and that such chains should not be treated as official extensions of the network with special status.

Coverage notes that he now views L2s as a spectrum of networks with different trust and security trade offs, rather than uniform "branded shards" of Ethereum, and wants teams to explicitly state what guarantees they do and do not inherit from mainnet security. One detailed summary highlights his concern that some L2s may intentionally never fully decentralize for regulatory or commercial reasons.

2. From Generic Scaling To Specialization

Instead of being generic throughput layers, Buterin suggests L2s should justify themselves with clear roles, such as privacy focused virtual machines, ultra low latency environments, non financial or social applications, or chains with built in oracles and dispute resolution. Cointelegraph reports that he explicitly called for L2s to move beyond just "Ethereum but cheaper" and lean into differentiated value propositions tied to specific use cases and trust models.

On chain data reinforces the shift. One analysis finds that value secured on Ethereum rollups has fallen to about $40.3 billion, down over 13 percent year on year, even as L2 user operations per second have surged, suggesting they are used more for execution than as capital vaults in that report.

3. How L2 Teams Are Reacting And What To Watch

Major L2 builders have already responded. A Cointelegraph piece notes Arbitrum and Optimism still emphasize scaling as central, but accept the need for more transparent security and better interoperability, while Bases Jesse Pollak says L2s cannot just be "Ethereum but cheaper" and highlights Bases focus on onboarding and distinct features like account abstraction and privacy summarized here. ZK focused projects like Starknet position themselves as closer to Vitaliks preferred model of specialized, proof driven L2s.

For users, key things to monitor now are: 1) whether an L2 publishes a credible roadmap to "Stage 2%%CKPROTECTED2%% decentralization with minimized multisig control, 2) how clearly it explains its niche, and 3) how it plans to coexist with a more scalable Ethereum L1 that is already raising gas limits as discussed here.

Conclusion

Buterins comments are not a call to abandon L2s, but a demand that they grow up: stop selling undifferentiated "cheap blockspace" and define clear, honest roles with transparent security. For crypto users, the edge is in distinguishing purpose built, progressively decentralized L2s from those that mainly borrow the Ethereum brand without matching its guarantees.