Vitalik Buterin Gives 60% Odds to Single-Digit Overhead for Advanced

Ethereum co-founder Vitalik Buterin estimates there is a 60% chance that three advanced cryptographic technologies — SNARKs, fully homomorphic encryption (FHE) and indistinguishability obfuscation (iO) — could eventually operate with single-digit computational overhead.

Buterin also assigned a 33% probability that all three technologies could approach near-zero additional overhead for large real-world workloads, according to information published by @WuBlockchain. His assessment highlights the possibility that cryptographic techniques currently associated with substantial computational costs could markets become significantly more practical as specialized hardware, algorithms and workloads improve.

Buterin Sees SNARKs as the Likeliest Near-Term Breakthrough

Of the three technologies, Buterin said at least one, most likely SNARKs, could reach sub-10x overhead by the end of this decade.

Cryptocurrency He pointed to specialized hash functions and certain large language model inference workloads as examples that are already approaching that level of computational efficiency. The observation provides a practical benchmark for how quickly cryptographic computation could become more viable outside highly specialized applications.

SNARKs are particularly relevant to blockchain infrastructure because they can enable computational results to be verified without requiring every participant to independently reproduce the underlying computation. Lower overhead could therefore expand the range of applications where zero-knowledge techniques are economically and technically feasible.

FHE and iO Face a More Ambitious Efficiency Target

Buterin's assessment also covers FHE and iO, two areas that have broader implications for privacy-preserving computation. FHE is designed to allow computation on encrypted data, while iO aims to make it possible to obscure the internal structure of a computation while preserving its functionality.

Reaching single-digit overhead across these Cryptocurrency technologies would represent a substantial efficiency improvement, although Buterin's estimates are probabilities rather than predictions of a guaranteed technological outcome.

For the blockchain industry, continued progress could influence the economics of privacy, verifiable computation and decentralized applications. The immediate milestone to watch is whether SNARK implementations can achieve the sub-10x overhead threshold before the end of the decade, providing a measurable test of Buterin's outlook.

Writer: Victoria Hale
Technology & Blockchain Writer

Victoria Hale writes about blockchain technology, digital infrastructure, and the intersection of emerging technologies with finance. Her articles explore how new protocols and systems are shaping the evolving digital economy.

She prioritises clarity and accuracy when explaining technical developments to a general audience.