r/slatestarcodex
Slate Star Codex: In a Mad World, All Blogging is Psychiatry Blogging
Founded February 2014 · Public — anyone can post
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/
Members
84,242
84K
Online now
—
not captured in the last snapshot
Posts per day
3.7
from the last 100 posts, spanning 26.6 days
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
+1.0%
+875 members · ≈37d
Promo tolerance
—
not assessed yet
Last post
Oct 18
sampled Oct 18
Distinct posters
72%
of the last 100 posts
Tracking since Sep 11 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Similar by content
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A subreddit for discussing work in neuroscience, psychology, and philosophy of mind regarding consciousness and mental phenomena (including animal minds). This does not include discussions on the Supernatural (e.g., paranormal, psi research, or odd personal anecdotes), Practices (e.g., meditation techniques, religion, and spirituality), Medical Advice (e.g., psychiatric or mental health advice), Drugs (e.g., psychedelics), and so on. Violating posts will be removed.
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See the full lists on similar subreddits.
r/slatestarcodex — frequently asked
How many members does r/slatestarcodex have?
r/slatestarcodex has 84,242 members as of our most recent crawl on Oct 18. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/slatestarcodex growing?
Over the last ≈37 days r/slatestarcodex changed by +1.0% — a gain of 875 members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".
How active is r/slatestarcodex?
Around 3.7 posts per day, measured from the newest 100 posts on Reddit, which span 26.6 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.
When was r/slatestarcodex created?
r/slatestarcodex was founded in February 2014 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Who posts in r/slatestarcodex?
Of the last 100 posts we sampled, 72% came from distinct accounts; the newest was published Oct 18. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.
Can I promote my product in r/slatestarcodex?
We don't have a promo-tolerance read for r/slatestarcodex yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/slatestarcodex for mentions?
Hit Watch on this page. Prowlo starts crawling r/slatestarcodex into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/slatestarcodex's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/slatestarcodex's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
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