OFFCHAIN LABS CHALLENGES VITALIK'S RISC-V PROPOSAL

Summary from the TLDR Crypto newsletter

Offchain Labs challenged Vitalik Buterin's proposal to transition Ethereum's execution layer to RISC-V, arguing WebAssembly offers superior long-term advantages by distinguishing between "delivery ISA" for uploading contracts versus "proving ISA" for ZK virtual machines. Arbitrum already proves WASM-based Stylus smart contracts by compiling WASM to RISC-V first, and enshrining RISC-V on L1 could lock Ethereum into proving technology just as better alternatives emerge. WASM's structured design, efficient execution on common hardware without emulation, validation capabilities preventing vulnerabilities, and mature tooling ecosystem position it as an "Internet Protocol for smart contracts" as ZK proving costs have plummeted to $0.025 per block.