TechFlow news, November 4 — Ethereum founder Vitalik Buterin posted on a social media platform on November 4, acknowledging that the modexp precompile he created has severely impacted Ethereum's performance, describing it as inefficient and increasing the risk of consensus failure.
Buterin suggested replacing the precompile via an EIP (Ethereum Improvement Proposal) with computationally equivalent EVM code, even though this would consume more gas.
He noted that in practice, only a very small fraction (about 0.01%) of applications require the modexp function, and the opportunity cost of optimizing this rare opcode is much higher than improving core scaling layers.
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