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vitalik.eth· 2026-02-22 19:24
How I think about "security":The goal is to minimize the divergence between the user's intent, and the actual behavior of the system."User experience" can also be defined in this way. Thus, "user experience" and "security" are thus not separate fields. However, "security" focuses on tail risk situations (where downside of divergence is large), and specifically tail risk situations that come about as a result of adversarial behavior.One thing that becomes immediately obvious from the above definition, is tha ...
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vitalik.eth· 2026-02-21 15:05
"AI becomes the government" is dystopian: it leads to slop when AI is weak, and is doom-maximizing once AI becomes strong. But AI used well can be empowering, and push the frontier of democratic / decentralized modes of governance.The core problem with democratic / decentralized modes of governance (including DAOs on ethereum) is limits to human attention: there are many thousands of decisions to make, involving many domains of expertise, and most people don't have the time or skill to be experts in even on ...
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vitalik.eth· 2026-02-19 18:59
## HardenFOCIL is already a significant hardening of Ethereum.But beyond that, the most important work this year is not in the glamorous (heh) EIPs, it's in the gritty stuff:* Network security testing* Post-quantum readiness (eg. we are also exploring EIPs to make it much more gas-efficient to verify quantum-resistant signature schemes inside the EVM)* Improving our ability to analyze the network's geographic decentralization* All the various work Kohaku is doing on the security side (trustless RPCs, social ...
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vitalik.eth· 2026-02-19 18:59
## Improve UXWe often make the mistake of thinking about "improving UX" and "improving [user-layer] security" as being two separate domains. In reality though, they are a tightly interconnected tradeoff space. It's not UX vs security, it's improving the UX of security (or improving the security of usage patterns that already have good UX).AA (8141) and FOCIL are two major EIPs targeted for Hegota, and I talked about their value here:https://t.co/rkzDqxnQOXTheir goal is to take flows that are already possibl ...
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vitalik.eth· 2026-02-19 18:59
Ethereum L1 protocol research is taking leaps forward in 2026. A good post from @ralexstokes:https://t.co/XPa4bmYnJF* Scale* Improve UX* Hardenstokes (@ralexstokes):Announcing three new tracks for our work at @ethereumfndn Protocol this year!tl;dr:- Scale (@adietrichs, @vdWijden, @raulvk)- Improve UX (@barnabemonnot, @lightclients)- Harden the L1 (@fredrik0x, @parithosh_j, @soispoke)1/... ...
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vitalik.eth· 2026-02-19 16:38
There is also an important synergy between FOCIL and AA (EIP-8141, which is based on 7701):8141 makes not just smart accounts (including multisig, quantum-resistant signatures, key changes, gas sponsorship) first-class citizens, it also can do the same for privacy protocols (either indirectly via paymaster, or if we add 2D nonces, directly as a multi-tenant account). "First-class citizen" means that operations sent from that account can be included directly onchain as transactions, with no wrappers.FOCIL en ...
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vitalik.eth· 2026-02-18 16:08
RT Devansh Mehta (@devanshmehta)we just launched a dashboard showing who has completed deep funding jury duty!pick 10 out of 98 OS repos impactful to ethereum, make judgments b/w them & get yourself up on the wall of honor!this data is used to train & test AI models in @JoinPond & @seer_pm , link in QT https://t.co/D1XdueYBM3 ...
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vitalik.eth· 2026-02-18 12:57
This is a good post on the impact of surveillance in Iran:https://t.co/1kT3SrsCyOIt's worth reading.IMO one mistake that freedom advocates often make is that we talk about privacy violation and surveillance as "dystopian", using the word as a semantic stop sign: we know it means "bad", we nod along, and don't really go further to clarify why it's bad. I worry that this approach is long-run unhealthy: when we criticize various companies and countries for being "dystopian" and stop there, then to someone who' ...
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vitalik.eth· 2026-02-17 15:20
RT Ben Edgington (@benjaminion_xyz)Right, who wants to talk about Fast Finality on Ethereum?We're figuring out where the theoretical meets the practical: if finality matters to you, let's talk!🏗️ Infrastructure: L2s, Bridges, Interop protocols🏦 Liquidity: Exchanges, Staking pools, Apps💻 Protocol: Client devs & researchers❓ Others...The Hard Questions:- How fast is fast enough to make a difference? Is it quantifiable?- Which trade-offs are ok? Economic safety <33%? Higher finalisation threshold? Lower fork-c ...
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vitalik.eth· 2026-02-16 16:27
You do not have to agree with me on which applications are and are not corposlop to use Ethereum.You do not have to agree with me on what trust assumptions are acceptable in which situations to use Ethereum.You do not have to agree with me on political topics to use Ethereum.You do not have to agree with my views on defi, decentralized social or privacy-preserving payments to use Ethereum.You do not have to agree with my views on AI to use Ethereum.You do not have to agree with my view that Berlin has the b ...