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Here’s Why The Ethereum Fallback Vitalik Buterin Once Rejected Is Back on the Table

BeInCrypto
Vitalik Buterin reversed his 2017 stance, now supporting full user self-validation as a critical Ethereum fallback due to ZK-SNARKs and real-world risks.

Summary

Ethereum co-founder Vitalik Buterin has publicly reversed his 2017 assertion that average users personally validating the entire chain history was a "weird mountain man fantasy." This shift is driven by two main factors: advances in cryptography, specifically the rise of ZK-SNARKs, which allow users to verify blockchain correctness without re-executing every transaction, and lessons learned from real-world network failures and centralization risks.

In 2017, Buterin opposed the idea of blockchains committing state on-chain without storing user balances, fearing users would have to replay history or trust third-party RPC providers. Now, ZK-SNARKs offer a transformative, low-cost way to achieve security benefits previously deemed impractical. Buterin emphasizes that this self-verification capability, termed the "Mountain Man" option, is not for daily use but serves as a crucial fallback mechanism.

He argues that this ultimate safety cabin ensures self-sovereignty when the P2P network fails, latency spikes, or intermediaries censor applications. Similar to how BitTorrent constrained streaming platforms, this fallback provides Ethereum users with essential leverage and resilience for a decentralized future.

(Source:BeInCrypto)