Vitalik Buterin’s Vision: A Simpler Ethereum, Inspired by Bitcoin
Ethereum’s co-founder, Vitalik Buterin, has unveiled an ambitious plan to streamline Ethereum’s base protocol, aiming for Bitcoin-like simplicity within five years. This radical simplification aims to enhance efficiency, bolster security, and improve overall accessibility.
In a recent blog post, “Simplifying the L1,” Buterin outlines a comprehensive architectural restructuring encompassing consensus, execution, and shared components. He argues that simplicity is paramount for Ethereum’s long-term scalability and resilience, echoing Bitcoin’s minimalist approach.
While upgrades like proof-of-stake (PoS) and zk-SNARK integration have strengthened Ethereum, Buterin notes that accumulating complexity has led to extended development cycles, increased costs, and heightened vulnerability to bugs. He directly addresses past decisions contributing to these issues, emphasizing the need for change.
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Streamlining Ethereum’s Consensus: The “3-Slot Finality” Model
Buterin’s plan prioritizes simplifying Ethereum’s consensus layer. The proposed “3-slot finality” model is central to this, eliminating complexities such as epochs, sync committees, and validator shuffling. This simplification enhances security and allows for more straightforward fork choice rules.
Further improvements include leveraging Scalable Transparent Argument of Knowledge (STARK)-based aggregation protocols to decentralize and simplify network coordination.
Shifting the Execution Layer: From EVM to RISC-V
On the execution layer, Buterin proposes transitioning from the Ethereum Virtual Machine (EVM) to a more streamlined, ZK-friendly virtual machine like RISC-V. This could yield significant performance gains (up to 100x for zero-knowledge proofs) and simplify the protocol substantially.
RISC-V, an open-source instruction set architecture (ISA), aligns with a minimalist design philosophy. To maintain backward compatibility, a phased approach involving a RISC-V interpreter for legacy EVM contracts is suggested.
Related: Ethereum Community Proposes New Fee Structure
Protocol-Wide Standardization for a Leaner Ethereum
Buterin also advocates for protocol-wide standardization, proposing a single erasure coding method and serialization format (SSZ), and a unified tree structure to minimize redundant complexity. He suggests a “max line-of-code” target to maintain lean, auditable consensus-critical logic, similar to Tinygrad’s approach. Non-critical features will be maintained but outside the core specification.
This initiative comes amidst Ethereum’s declining market share relative to competing blockchains, highlighting the urgency of these proposed changes.