- Ethereum co-founder Vitalik Buterin suggested this week that layer 2 scaling blockchains are no longer essential for the network’s mass adoption.
- He cited disappointing progress from layer 2s and Ethereum’s own scaling improvements as key reasons for his revised stance.
- Founders of major layer 2 networks like Optimism, Base, and zkSync quickly defended their projects, arguing they provide crucial specialisation and customisation.
- Buterin urged layer 2 developers to find a new primary purpose, such as offering privacy or application-specific features, beyond just transaction scaling.
- The news comes amid a period of underperformance for Ether’s price and a DeFi/ethereum-foundation-renews-focus-on-mainnet/” rel=””>renewed focus on scaling the Ethereum mainnet itself.
Ethereum’s entire scaling roadmap was thrown into question this week when its influential co-founder, Vitalik Buterin, publicly reversed a long-held belief. He stated that the previous consensus—that mass adoption required layer 2 blockchains—“no longer makes sense.”
This surprising about-face sent founders of popular layer 2 networks scrambling to social media to defend their work. Optimism founder Karl Floersch wrote “Challenge accepted,” while others detailed their projects’ specialized value.
Buterin leads the Ethereum Foundation and remains the blockchain’s most prominent voice. He argued that Ethereum itself is now scaling directly on its base layer, reducing the necessity for layer 2s merely as “branded shards.”
Consequently, he suggested these secondary networks must find a new raison d’être. “Identify a value add other than ‘scaling,'” he wrote, pointing to features like enhanced privacy.
Many layer 2 founders responded that they are already specializing. Base‘s Jesse Pollak wrote his chain focuses on native account abstraction and building the best apps.
Meanwhile, zkSync founder Alex Gluchowski wrote his network would double down on transaction privacy. He aims to become “the Bank Stack of Ethereum.”
Arbitrum co-founder Steven Goldfeder cast doubt on Ethereum’s immediate capacity to handle layer 2 transaction volumes. He wrote that rollups today are as much about customisation as scaling.
The debate arises as Ether’s price has struggled amid a broader market rally. This has fueled criticism that layer 2s became parasitic, drawing activity away from the main network.
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