r/slatestarcodex is a subreddit with 83k 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, existential risk, economics, medicine, and psychiatry.
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
: "OpenAI agents rebuilt a secret message board after the company shut it down"
15 posts
#2
Existential Risk
: "No One Believes a True Believer"
4 posts
#3
Economics
: "Supply and Demand Is Not What Most People Think"
2 posts
#4
Medicine
: "Why is assisted dying so rare, even where it's legal?"
1 post
#5
Psychiatry
: "Epistemics"
1 post
#6
Rationality
: "The Case Against Kanji"
1 post
#7
Link Thread
: "Links For July 2026 (Part 2)"
1 post
#8
Fun Thread
: "Switch 2 games for a SSC lover?"
1 post
#9
Politics
: "An analysis about the left vs right division being a false dialectic, that gets deployed to distract the population while conveniently leaving capital intact?"
1 post
#10
Misc
: "Investors should’ve seen the red flags in the beginning"
1 post
Member Growth in r/slatestarcodex
Yearly
+10k members(14.0%)
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Last updated: August 9, 2026