In accordance with Chainthink, on December 23, Ethereum founder Vitalik Buterin responded to a community inquiry regarding the rationale for Ethereum's contract size limit, stating it is primarily to mitigate denial-of-service (DoS) risks. He noted that after Ethereum's state structure is upgraded to a unified binary trie (EIP-7864), contract size could become unlimited, though challenges remain in determining gas costs and mechanism design for large contracts. Currently, the practical contract size limit is approximately 82KB, based on per-byte creation costs.
Vitalik: Ethereum Sets Contract Size Limit to Mitigate DoS Risks
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Summary
Vitalik Buterin explained Ethereum’s smart contract size limit aims to reduce DoS risks, as reported by Chainthink on December 23. The current limit sits around 82KB due to per-byte creation costs. He mentioned the EVM (Ethereum Virtual Machine) structure will change with EIP-7864, potentially lifting the cap. However, gas pricing and design for large contracts remain challenges.
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