recursive self-improvement newsletters

NewsletterFIT tracks 10 newsletters that cover recursive self-improvement as a primary topic, 8 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are The Analytics Engineering Roundup (32K), PastPresentFuture (12K) and The Pop-Up School (9K).

Updated Oct 29, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    The Analytics Engineering Roundup 32K subscribers

    Substack Every two weeks · last post 20 days ago

    Likely audience: Data engineers and dbt users

  2. 2
    PastPresentFuture 12K subscribers

    Substack Every two weeks · last post 19 days ago

    Likely audience: History enthusiasts

  3. 3
    The Pop-Up School 9K subscribers

    Substack last post Jul 9, 2026

    Likely audience: AI researchers

  4. 4
    Beyond the Hype Cycle? 8K subscribers

    Substack Every two weeks · last post 46 days ago

    Likely audience: AI safety researchers

  5. 5
    Paper to Profit 4K subscribers

    Substack Monthly or less · last post 16 days ago

    Likely audience: Quantitative traders

  6. 6
    Ramez Naam 1K subscribers

    Substack Monthly or less · last post 32 days ago

    Likely audience: AI researchers

  7. 7
    Platformer —

    Ghost Weekly · last post 23 days ago

    Likely audience: AI researchers

  8. 8
    What's Hot 🔥 in AI/Infra/VC —

    Substack Weekly · last post 19 days ago

    Likely audience: Enterprise IT leaders

  9. 9
    Beyond Imitation —

    Substack Monthly or less · last post 21 days ago

    Likely audience: AI safety researchers

  10. 10
    salt-peanuts —

    Substack last post Jan 24, 2026

    Likely audience: AI researchers

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