Bio-Security Stack alternatives: newsletters like it

24 newsletters in the NewsletterFIT index cover the same topics as Bio-Security Stack (AI x biosecurity, AI existential risk and biological risk evaluation). The closest matches are Metaculus, AG+ (AI Daily News) and Homo Economicus. They are ranked by how many topics they share with it, then by publicly shown subscribers.

Updated Nov 13, 2026 · ranked by shared topics, then publicly shown subscribers · methodology

About Bio-Security Stack

Updates and thoughts on keeping humanity safe from threats arising from both biological and artificial life.

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  1. 1
    Metaculus165K subscribers

    SubstackEvery two weeks · last post 25 days ago

    Aggregating human & AI forecasts on critical topics.

    Likely audience: Policy makers

    1 shared topic

  2. 2
    AG+ (AI Daily News)19K subscribers

    SubstackEvery two weeks · last post Sep 1, 2026

    From recent posts: This newsletter covers AI industry news, including model releases, acquisitions, and funding, with a focus on open-weight models, AI infrastructure, and safety concerns. It is aimed at technology professionals and…

    Likely audience: AI researchers

    1 shared topic

  3. 3
    Homo Economicus9K subscribers

    SubstackSeveral times a week · last post today

    From recent posts: Homo Economicus publishes weekly essays on economics, AI safety, and labor markets, featuring data analysis, theoretical discussions, and academic paper summaries. The publication targets readers interested in the…

    Likely audience: Academic researchers

    1 shared topic

  4. 4

    SubstackSeveral times a week · last post 11 days ago

    From recent posts: David Friedman's Substack publishes weekly essays on game economics, Bayesian statistics, and legal theory using World of Warcraft as a case study, alongside occasional reader response posts and legal reform arguments.

    Likely audience: Economics students

    1 shared topic

  5. 5
    The Joyous Struggle5K subscribers

    SubstackMonthly or less · last post 16 days ago

    Likely audience: philosophy readers

    1 shared topic

  6. 6
    Colligo4K subscribers

    SubstackWeekly · last post 9 days ago

    From recent posts: Colligo publishes essays on AI reasoning failures, engineering principles, existential risk, and counter-UAS drone defense, alongside occasional pieces on ancient technology and archaeology. It is written for readers…

    Likely audience: AI researchers

    1 shared topic

  7. 7
    pauseai3K subscribers

    SubstackMonthly or less · last post Sep 10, 2026

    Official PauseAI.info newsletter

    Likely audience: policymakers

    1 shared topic

  8. 8
    The Land of Random2K subscribers

    SubstackSeveral times a week · last post 10 days ago

    Rediscover the magic of the Internet! Remember the old days? when the Internet was a fun place of discovery? Explore fun internet links every week!

    Likely audience: Tech enthusiasts

    1 shared topic

  9. 9
    kleeneai2K subscribers

    SubstackEvery two weeks · last post 16 days ago

    Every Wednesday, Data Trends covers what's shifting across the data and tech industry — and how it's reshaping business decisions in the AI era.

    Likely audience: AI researchers

    1 shared topic

  10. 10
    humanframework2K subscribers

    SubstackEvery two weeks · last post 21 days ago

    Comprendre l’intelligence, humaine, artificielle, et tout ce qu’il y a entre les deux.

    Likely audience: AI engineers

    1 shared topic

  11. 11
    Exformation2K subscribers

    SubstackMonthly or less · last post 44 days ago

    From recent posts: Exformation publishes long-form essays and policy analysis on AI governance, safety, and existential risk for an audience of policymakers and tech observers. The publication mixes deep-dive articles on regulatory shifts…

    Likely audience: AI safety researchers

    1 shared topic

  12. 12
    samanth2K subscribers

    SubstackMonthly or less · last post Sep 10, 2026

    Tales from the search for tales.

    Likely audience: newsletter readers

    1 shared topic

  13. 13
    The AI Philosopher1K subscribers

    SubstackMonthly or less · last post Sep 14, 2026

    The AI Philosopher is dedicated to exploring the intersection of artificial intelligence and human wisdom, offering insightful discussions on how technological advancements can enhance our understanding of…

    Likely audience: AI researchers and engineers

    1 shared topic

  14. 14

    SubstackWeekly · last post yesterday

    Likely audience: entrepreneurs

    1 shared topic

  15. 15

    SubstackEvery two weeks · last post 7 days ago

    Bestselling Science Fiction Author Cat Valente's Blatherings on the State of the World: Politics, Internet Culture, History, and Art

    Likely audience: paid subscribers

    1 shared topic

  16. 16

    SubstackEvery two weeks · last post 15 days ago

    A newsletter and podcast exploring AI, social media, and the invisible forces dividing us

    Likely audience: AI safety researchers

    1 shared topic

  17. 17

    SubstackSeveral times a week · last post 8 days ago

    Glenn Greenwald news, reports, and video recaps. Unofficial fan-stack/fan page.

    Likely audience: political commentators

    1 shared topic

  18. 18

    SubstackWeekly · last post 10 days ago

    From recent posts: Entropy Bonus publishes essays on AI topics including existential risk, alignment research, neural network interpretability, large language model training, and critiques of the stochastic parrot metaphor. It is written…

    Likely audience: AI safety researchers

    1 shared topic

  19. 19

    SubstackEvery two weeks · last post 39 days ago

    From recent posts: heywendymay publishes personal essays and reported pieces on life transitions, AI safety, and author-platform disputes. It is for readers interested in reflective writing about personal change, technology risk, and…

    Likely audience: readers seeking personal growth

    1 shared topic

  20. 20

    SubstackEvery two weeks · last post 18 days ago

    From recent posts: George Pitagorsky publishes essays on organizational learning, historical truth-telling, and AI's societal impact, drawing on his tech consulting experience and current events. The newsletter is for readers interested…

    Likely audience: history enthusiasts

    1 shared topic

  21. 21

    SubstackWeekly · last post 8 days ago

    Learnings about Cybersecurity from a practitioner. Cybersecurity growth and career advice.

    Likely audience: security professionals

    1 shared topic

  22. 22

    SubstackWeekly · last post 7 days ago

    From recent posts: A biweekly publication covering AI developments through two distinct lenses: analysis of frontier model safety, corporate strategy, and adoption demographics (e.g., Karpathy's four-layer model, Anthropic's S-1…

    Likely audience: tech investors

    1 shared topic

  23. 23

    SubstackMonthly or less · last post 39 days ago

    Essays and reflections from Brad Littlejohn at American Compass, addressing the crisis of human competence and the fracture of community in an age of WALL-E-fication.

    Likely audience: policy makers

    1 shared topic

  24. 24

    SubstackMonthly or less · last post 50 days ago

    Likely audience: AI safety advocates

    1 shared topic

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