Ethereum co-founder Vitalik Buterin has outlined sweeping changes to the network’s core consensus design following the release of the Ethereum Foundation’s new “strawmap,” a long-range technical roadmap aimed at accelerating layer-1 upgrades through the end of the decade.
Summary
- Vitalik Buterin outlined plans to reduce Ethereum slot times from 12 seconds toward as low as 2 seconds, with finality potentially dropping to 6–16 seconds.
- The Ethereum Foundation’s “strawmap” sketches seven forks through 2029, targeting faster UX, gigagas throughput, post-quantum security, and privacy.
- Upgrades include erasure-coded P2P networking, reduced attester counts, Minimmit-based finality, and eventual quantum-resistant cryptography.
Vitalik Buterin explains Ethereum Strawmap vision
In a detailed post, Buterin walked through one of the roadmap’s central goals: “fast L1,” which seeks to progressively reduce slot times and dramatically cut finality. Ethereum’s current average finality sits at roughly 16 minutes.
Under the proposed trajectory, slot times could gradually fall from 12 seconds to as low as 2 seconds, while finality could shrink to between 6 and 16 seconds using a one-round BFT-style algorithm known as Minimmit.
Buterin emphasized that slot time reductions would occur incrementally, potentially following a “sqrt(2) at a time” formula, and only when proven safe. Key enablers include peer-to-peer networking upgrades using erasure coding to improve block propagation efficiency, as well as architectural adjustments that reduce signature aggregation overhead by limiting the number of attesters per slot.
The strawmap, introduced by Ethereum Foundation researcher Justin Drake, presents five long-term “north stars”: fast L1, gigagas L1 throughput, teragas L2 scaling, post-quantum security, and native privacy. It spans seven projected forks through 2029, with upgrades grouped across consensus, data, and execution layers.
Buterin noted that many of the most invasive changes, including quantum-resistant hash-based signatures, may be bundled together in a gradual “ship of Theseus” style replacement of Ethereum’s consensus system.
While the document is described as a coordination tool rather than an official roadmap, it signals a push toward faster user experience, stronger cryptography, and end-to-end formal verification.