Vitalik Buterin's Bold Plan: Overhauling Ethereum's Core to Tackle Bottlenecks

Ethereum's next frontier isn't more layers. It's deep within its core. Vitalik Buterin is pointing the way with proposals that could redefine the blockchain's architecture. This isn't just some tinkering around the edges. We're talking about a major shift in protocol priorities that could impact millions of users and developers.

The Proposals in Focus

On March 1, 2026, Buterin laid out a vision that could see Ethereum shift away from focusing solely on scaling through Layer 2 solutions. Instead, the real story begins with Ethereum’s state tree and virtual machine. These core components account for over 80% of the proving costs. This is significant, especially as zero-knowledge technology becomes a central pillar of Ethereum's future roadmap.

At the heart of this is EIP-7864. It proposes replacing Ethereum’s current hexary Merkle Patricia tree with a more efficient binary tree design. The change might seem minor at first glance, but it carries significant implications. Shorter Merkle proofs mean verification requires less bandwidth, making lightweight clients more feasible and cost-efficient.

The proposal also includes organizing storage slots into 'pages', which could speed up data access for decentralized applications, potentially saving more than 10,000 gas per transaction. That’s a big deal for dApp developers looking to optimize for gas costs.

Buterin also mentioned pairing this overhaul with more efficient hash functions. The goal? A base layer that's more 'prover-friendly', allowing ZK applications a direct connection with Ethereum's state without redundant parallel systems.

The Bigger Picture

Buterin isn't stopping at state trees. He's thinking bigger. Much bigger. He’s considering moving beyond the Ethereum Virtual Machine (EVM) to a RISC-V-based architecture. Why? Because RISC-V, a popular open instruction set, could simplify and enhance execution efficiency.

The EVM, while foundational, is showing cracks. Ethereum's reliance on special-case precompiles highlights its limitations. If the core promise of Ethereum is general-purpose programmability, then the VM should live up to that without needing constant adjustments. A RISC-V-based VM could achieve this by reducing complexity and aligning better with modern zero-knowledge proving systems, many of which already operate within RISC-V environments.

In the short term, Buterin proposes a 'vectorized math precompile', essentially a 'GPU for the EVM', which could accelerate cryptographic operations. Longer term, he envisions RISC-V powering precompiles, then supporting user-deployed contracts, eventually making the EVM a compatibility layer.

Who Stands to Gain or Lose?

So, what does this mean for the crypto space? For developers, a more efficient base layer could unlock new possibilities in dApp design, reducing costs and enhancing performance. But not everyone is sold. Some critics argue that adding layers of complexity to Ethereum only compounds existing issues. Each new framework introduces trust assumptions and potential attack surfaces.

Look, there's a tension between layering more solutions onto Ethereum's existing design versus reworking its foundation. Buterin seems convinced that the architectural evolution is essential, especially as zero-knowledge proofs shift from niche interest to mainstream necessity.

Ultimately, Ethereum’s next scaling phase might not unfold on Layer 2. It could happen within Ethereum's core, fundamentally reshaping how the network operates and interacts with dApps. In a world where efficiency and scalability are key, Buterin's proposal might just chart the course for Ethereum’s future.