Lighthaven
Article
Lighthaven is a recurring organization in the Astral Codex Ten archive, appearing 5 times across 5 issues between May 13, 2024 and November 03, 2025. The archive places it in contexts such as “Lighthaven is still hosting two back-to-back conferences in Berkeley in late May early June”; “Lighthaven is the rationalist HQ in Berkeley”; “Another Lighthaven event: Ricki Heicklen is running a quantitative trading bootcamp at Lighthaven (in Berkeley)“. It most often appears alongside Berkeley, ACX, Inkhaven.
Metadata
- Category: Organizations
- Mention count: 5
- Issue count: 5
- First seen: May 13, 2024
- Last seen: November 03, 2025
Appears In
Related Pages
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- Berkeley (5 shared issues)
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- ACX (3 shared issues)
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- Inkhaven (2 shared issues)
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- US (2 shared issues)
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- @halomancer1 (1 shared issues)
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- Aella (1 shared issues)
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- Agnes Callard (1 shared issues)
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- AI Ethics, Safety, and Society (1 shared issues)
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- AmandaFromBethlehem (1 shared issues)
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- Amazon (1 shared issues)
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- America (1 shared issues)
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- Amish (1 shared issues)
External Links
Source Context
Recovered passages from the original issue text. When the raw archive preserved outbound links inside the source passage, they are listed directly under the quote.
4: And Lighthaven is still hosting two back-to-back conferences in Berkeley in late May early June, of which you are invited to both. First, Less Online, a conference for rationalists and rationalist-blog-readers, May 31 - June 2. I might have announced this before, but new guests since I last mentioned it include Patrick McKenzie, Agnes Callard, Kevin Simler, Cremieux, and Aella. Second, Manifest, a conference on prediction markets, June 7 - 9. I’ll be at both. Ticket prices go up midnight on Monday. If you want to meet the guests but can’t pay, there should be an ACX meetup at Lightcone around that time, which many guests will be attending and which will be free admission.
Inline links: Less Online,, Manifest
38: Sequences Reading Group at Lighthaven. The Sequences are the founding text of the rationalist movement (readable here), and Lighthaven is the rationalist HQ in Berkeley. The first meeting has already happened, but you can RSVP to their mailing list for information on future (weekly?) meetups.
Inline links: Sequences Reading Group at Lighthaven, readable here
2: Another Lighthaven event: Ricki Heicklen is running a quantitative trading bootcamp at Lighthaven (in Berkeley), November 6-10. Prices go up tomorrow from $1350 to $1550, but you can get a $150 discount if you check "ACX Open Thread" for "Where did you hear about this bootcamp?" Register at https://forms.gle/swGLn6jZpfKrN4jN6 . You can read more here or listen to the Patrick McKenzie podcast here. She specifies that “this will not make you rich” and “will not meaningfully boost your resume [to get a job at a] quantitative trading firm”, so I guess it’s aimed at people who . . . just have an abstract passion for learning about quantitative trading and are willing to spend $1000+ to satisfy it? I am as curious as you are whether this is a real demographic; if any of you go, please tell me whether anyone else attended. Meanwhile, I need to learn to say no to advertising Lighthaven events, so I’m committing to no more of them this year unless it’s extra-important.
2: Lighthaven (the rationalist community campus in Berkeley) is hosting Inkhaven - a blogging bootcamp aimed at people who want to blog more but struggle with motivation. Selected fellows will live on site for the month of November, and write one blog post per day or else be kicked out. There will be some mentors around including Gwern, Scott Aaronson, and me. I don’t want to over-endorse this - I have no idea whether it will create any kind of lasting motivation or tendency that sticks around after the program, for most people blogging is a low-reward activity, and the cost is pretty steep - but I think it’s a good experiment for Lighthaven to try, and trust potential applicants to make good choices for their own situation. Cost is $2,000 (program only) to $3,500 (program plus housing for one month) to $4,700 (program _ housing + meals). Some financial assistance available. Apply here. And yeah, they should have called it “Writehaven”.
3: This November, Lighthaven is sponsoring Inkhaven, a “blogging residency” where forty-one early-career would-be bloggers stay with them for the month and have to write one post per day or get kicked out. Follow along here. You may recognize this year’s book review contest winner Bill Friedman, last year’s winner AmandaFromBethlehem, ACX meetup czar Skyler, and last year’s ACX grantee Sasha Putilin. And here is a prediction market on how many people get kicked out.