r/slatestarcodex is a subreddit with 84k members. The community frequently discusses looking for, ai, worst, philosophy, and technology, and they frequently recommend/review simulation software, charities, and nootropic, and the most common flair used is ai, effective altruism, economics, existential risk, and fun thread.
Slate Star Codex was the former name for a blog by Scott Alexander about human cognition, politics, and medicine. In 2021, the name was changed to Astral Codex Ten: https://astralcodexten.substack.com/
Popular Topics in r/slatestarcodex
#1
Looking For
36 posts
#2
Ai
36 posts
#3
Worst
11 posts
#4
Philosophy
9 posts
#5
Technology
8 posts
#6
Hate
6 posts
#7
Intelligence
6 posts
#8
Writing
5 posts
#9
Future
5 posts
#10
Ethics
4 posts
Products Discussed in r/slatestarcodex
Simulation Software
1 review
#1
Microsoft Excel
3.0★ from 1 review
Charities
1 review
#1
Giving What We Can
5.0★ from 1 review
Nootropic
1 review
#1
Cerebrolysin
4.0★ from 1 review
Flair Used in r/slatestarcodex
#1
AI
: "UT Austin Math Chair Francesco Maggi says OpenAI appears to be preparing to release ~400 AI-generated proofs at once"
11 posts
#2
Effective Altruism
: "Will MacAskill's response to the Economist's cover story on Effective Altruism"
2 posts
#3
Economics
: "Which jobs will remain after AI?"
2 posts
#4
Existential Risk
: "Arms control negotiators think there won’t be a U.S.-China AI treaty"
2 posts
#5
Fun Thread
: "Half An Hour Before Dawn in San Francisco (music video for the Fooming Shoggoths cover of Scott's post)"
2 posts
#6
Philosophy
: "The underestimated happiness of mild unhappiness"
2 posts
#7
Medicine
: "LessWrong post about the apparent lab leak in Russia"
1 post
#8
Misc
: "Longform article in the New Yorker about Carleton Gajdusek (Nobel Prize for Kuru disease and raging pedophile) who was topic of book review contest 2024"
1 post
#9
Fiction
: "The Altruists | Official Trailer - Julia Garner and Anthony Boyle star as Caroline Ellison and Sam Bankman-Fried"
1 post
#10
Meta
: "What happened to The Motte?"
1 post
Member Growth in r/slatestarcodex
Yearly
+11k members(14.5%)
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Last updated: October 15, 2026