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Dave Beckett
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@dajobe

Dave Beckett

@dajobe
Husband in SF. 🇺🇸🇮🇪🇪🇺 Fan of Lego. Prod Engineer @crusoeai. Past: @Google @Twitter 1.0. dajobe.org He/Him threads: dajobegram
San Francisco
dajobe.org
Joined November 2006
605 Following
3,236 Followers
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  • Pinned
    @dajobe
    Dave Beckett
    @dajobe
    Dec 17, 2022
    And that was my last day at Twitter. Laid off by email. The experience has been indescribable from chaos to hilarious.
    94
  • @dajobe
    Dave Beckett
    @dajobe
    Jul 10
    The Codex App in main ChatGPT app is quite awful. I'm going back to codex CLI. This was the reply to the first gpt-5.6-sol code question I did "do a deep review of this codebase and write a report". Quite useless response and the result was 1/3 of what Fable 5 did.
    2
  • @dajobe
    Dave Beckett
    @dajobe
    Jun 23
    LLMs got good at code because it's verifiable: tests pass or fail. Operations isn't, so manufacture the reward: simulate production, the way robotics learns in simulation. The catch: the model only covers the failures you already understood. dajobe.org/blog/2026/06/2…
    A vertical loop: real production seeds and validates an artificial systems model; the model trains an agent over millions of RL episodes; the learned policy is tested back in reality across the simulation-to-reality gap and feeds back into production. The policy only covers failures the model contained.
    1
  • @dajobe
    Dave Beckett
    @dajobe
    Jun 5
    Looks like @SFMTA_Muni is pivoting into search.
  • @dajobe
    Dave Beckett
    @dajobe
    May 13
    Sovereignty as an SRE problem. The political ask is independence. The engineering work is SLA, staffing, complexity, and creating an operational surface for a sovereign operator with a hyperscaler's stack. Three years on Google Cloud Dedicated / S3NS. dajobe.org/blog/2026/05/1…