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35 - Designing Ethereum | Vitalik Buterin

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Vitalik Buterin Guest

Topics Discussed

Episode Summary

Executive Summary: The episode frames Ethereum as a single evolving social contract built around decentralization, neutrality, and permissionless participation. Vitalik explains why ETH2 adds proof of stake and sharding, why roll-ups are the practical near-term scaling path, how EIP-1559 reshapes fees and ETH’s monetary role, and why the merge is a unified transition—not a new chain.

Main Topics: Ethereum’s value system and social contract (Priority: 5/5): The conversation centers on how Ethereum’s core values—decentralization, permissionlessness, neutrality, and user sovereignty—shape protocol design and community norms. The hosts emphasize that Ethereum’s roadmap is as much about ethics and governance as it is about code. Proof of stake as a security, energy, and participation upgrade (Priority: 5/5): Vitalik argues proof of stake reduces energy waste, lowers centralization pressure from ASIC mining, broadens participation, and improves recovery options against attacks compared with proof of work. Sharding and scaling without supernodes (Priority: 5/5): Sharding is presented as a way to dramatically increase throughput while keeping validation accessible to ordinary users and avoiding dependence on powerful servers or trusted intermediaries. Roll-up-centric roadmap and Layer 2 future (Priority: 5/5): The episode argues that roll-ups are the immediate scalability solution and that Ethereum can prioritize data sharding plus roll-ups to achieve high throughput faster, while keeping the base layer simpler and more secure. EIP-1559, fee markets, and ETH’s monetary role (Priority: 4/5): Vitalik describes EIP-1559 as both a fee market reform and a way to strengthen ETH’s centrality by burning fees, which reduces privileged fee capture and changes the economics of the network. Merge and the unified Ethereum roadmap (Priority: 4/5): ETH1 and ETH2 are framed as one system: the merge will transplant the existing Ethereum state into the proof-of-stake chain, making the transition mostly automatic for users and preserving continuity of the network. Composability, domains, and cross-shard / cross-rollup UX (Priority: 4/5): The discussion explores how Ethereum can preserve useful DeFi composability through design patterns like yanking, domain-based execution, and later multi-shard roll-up architectures.

Key Arguments: Ethereum’s core differentiator is not just technology but a social contract centered on decentralization, neutrality, and permissionless use. Proof of stake is preferable because it reduces energy consumption, lowers hardware centralization, enables broader participation, and gives communities better recovery tools after attacks. Sharding is necessary because a scalable base layer helps prevent users from being pushed into centralized intermediaries and private ledgers. The long-term failure mode of many blockchains is centralization and elite capture; Ethereum is explicitly designed to resist that. Roll-ups are the most realistic near-term scaling solution, and Ethereum should embrace them rather than delay waiting for more complex execution sharding. EIP-1559 improves fee predictability, removes inefficiencies of first-price auctions, and strengthens ETH’s role by burning fees instead of paying them all to block producers. Proof-of-work distribution was once seen as egalitarian, but specialization and ASIC evolution eroded that advantage over time. Proof of stake’s apparent ‘locked-in’ validator set is partly offset by lower issuance, broader access to staking, and better social recovery in attack scenarios. Validation culture matters: even non-stakers should run nodes or otherwise verify the chain to preserve decentralization and reduce reliance on trusted APIs. The merge is a transplant, not a reset; ETH1 state moves into ETH2, and users should not need to manually migrate assets or contracts.

Data Points: Phase zero timing: "very close to being released" - Vitalik says ETH2 phase zero testnet/deployment is near. Ethereum status quo throughput: about 15 TPS - He cites actual average transaction throughput on ETH1. ETH transfer throughput: about 45 TPS - He distinguishes simple ETH transfers from broader transaction activity. Projected ETH2 throughput: 1,000 to 100,000 TPS - Used to describe the range depending on phase and application type. Extremely optimistic scaling claim: 100,000 TPS - Vitalik references his earlier ambitious forecasts as now plausible. Historical ETH issuance proposal: 16 million ETH per year forever - Early Ethereum white paper issuance model. Ethereum block fees during DeFi mania: 3 to 5 ETH in fees plus 12 ETH issuance - Example of high MEV and fee pressure before EIP-1559. Base staking threshold: 32 ETH - Minimum amount needed to stake directly without pooling. Gas price spike: up to 700 gwei - Used as evidence of urgent scaling needs. Current gas range mentioned: tens to 100 gwei - Describes persistent fee pressure during the period discussed. Roll-up-focused DeFi scale target: many thousands of TPS - Potential scale once roll-ups are combined with shard data availability. BTC tokenization on Ethereum: 142,000 BTC - Current amount of wrapped/tokens BTC on Ethereum at the time of recording. Year of Yearn deposits mentioned: over $700 million - Shows rapid growth in DeFi demand and yield products.

Pivotal Quotes: "There isn't one canonical version of Ethereum, there's just the values that we have and the code that we use to express it." — David Hoffman: Used to frame ETH2 as a continuation of one Ethereum social contract rather than a separate network. "We do not want to have super node dependence." — Vitalik Buterin: Explains Ethereum’s refusal to trade away decentralization for short-term scalability. "Sharding is not canceled." — Vitalik Buterin: Responding to concerns that roll-ups might replace the need for sharding; he clarifies sharding remains part of the roadmap.

Implications: Listeners should see Ethereum as a values-driven protocol evolving toward cheaper, more decentralized participation via staking, sharding, and roll-ups. For the industry, the message is clear: scale without sacrificing neutrality or node accessibility, or risk long-term capture.

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