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Astral Codex Ten’s Open Thread 458 is a weekly community post featuring updates on California ballot guides, FutureSearch job openings, a planned Pause AI protest in London and an ACX meetup listing in Manila. The post also shares a Halloween costume inspired by an earlier ACX article. It does not report a new policy decision or confirm whether the protest will reach its attendance target.
Astral Codex Ten (ACX) has published Open Thread 458, a weekly community post that shares links and notices on California ballot guides, hiring at AI forecasting company FutureSearch, an upcoming Pause AI protest in London and a new meetup listing in Manila. The post says organizers are seeking at least 1,000 participants for the November 21 event, but does not confirm how many will attend.
The thread says ACX readers who offered additional considerations on the author’s California ballot were thanked. It points readers to OpenBallot.app, where David Bloomin has collected Bay Area voting guides. The post says the site lets readers compare the author’s positions with guides from groups including SF Democrats, SF Republicans, YIMBYs, Women and the “SF League Of Pissed Of Voters.” It does not describe the guides’ methods or endorse any one group’s recommendations.
A separate notice says FutureSearch is hiring. The post describes it as one of the leading AI superforecaster companies and says many of its members are ACX readers. It invites people with a sincere interest in forecasting to review the available positions. The thread provides a link to the company’s jobs page, but does not list roles, salary ranges or application deadlines.
The post also directs readers to information about a Pause AI protest in London scheduled for November 21. It reports that organizers had 829 people and were aiming for at least 1,000, alongside links to sign up and learn about volunteer opportunities. In a community update, the thread says Manila, Philippines, has been added to the ACX meetup list. It closes with a Halloween image shared by a reader whose costume combined Schrödinger’s cat with a reference to the ACX post “Trapped Priors.”
Community Notices and Participation
The thread’s significance is practical rather than institutional: it gathers opportunities for readers to take part in civic, professional and social activities. The Bay Area guide list offers a route to compare ballot recommendations, while the FutureSearch link points forecasting enthusiasts toward job openings. The post’s descriptions are the thread author’s framing; readers would need to consult each linked source for details and make their own judgments.
The London notice gives readers a visible measure of the organizers’ stated goal: 829 people listed against a target of at least 1,000. That figure may help people decide whether to sign up or volunteer, but the post does not define what the count represents or say when it was recorded. The new Manila listing also expands the geographic reach of the community’s meetup notices, though the thread gives no event date or attendance information.
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A Weekly ACX Community Thread
Open Thread 458 is presented as ACX’s weekly visible open thread, a space where readers can post on any subject or ask informal questions. The source post also points to an unofficial subreddit, Discord server, bulletin board and in-person meetups around the world. It says most ACX content is free, while some is available to subscribers.
The notices combine several unrelated updates rather than announcing a single coordinated initiative. The post refers back to reader feedback on a California ballot, adds external links for voting information and jobs, and relays details from Pause AI organizers. It also records a new meetup location and a reader’s Halloween costume inspired by previous ACX writing. No further detail is provided on how the thread’s links or notices are selected.
Attendance and Event Details
The post does not say whether the November 21 protest took place or whether organizers reached their stated target. The date is presented as upcoming in the source material, but no year is stated alongside it; the surrounding Halloween post is dated October 31, 2026, which places the notice in that year. The 829 figure is not accompanied by a timestamp, counting method or explanation of whether it refers to sign-ups, commitments or another measure.
Other details are also absent. The thread does not provide the specific FutureSearch job openings, the substance of the linked ballot guides, or dates and organizers for the Manila meetup. The costume post identifies a reference to “Trapped Priors,” but supplies no further information about the costume or the earlier article. Readers will need to follow the links for details that are not included in the thread.
Follow the Linked Notices
Readers interested in the London protest can use the linked Pause AI information and sign-up pages to check the event’s current status, volunteer options and any updated attendance figures. The thread itself gives no later count or confirmation of the event’s outcome.
Those seeking other updates can consult OpenBallot.app for the collected Bay Area voting guides, FutureSearch’s jobs page for current openings and the ACX meetup list for Manila event information. The thread establishes no publication schedule beyond identifying itself as weekly, so later developments would depend on updates from those organizations or a subsequent ACX post.
Key Questions
What is Open Thread 458?
It is a weekly open community thread published by Astral Codex Ten, inviting readers to post on any topic and sharing selected notices and links.
What did the post say about the London Pause AI protest?
It listed a protest for November 21 and reported that organizers had 829 people while aiming for at least 1,000. The post does not confirm the final attendance or outcome.
What is OpenBallot.app mentioned for?
The post says David Bloomin collected Bay Area voting guides there, allowing readers to compare recommendations from several groups with the author’s views.
What other community updates did the thread include?
It linked to FutureSearch job openings, added Manila to the ACX meetup list and shared a reader’s Halloween costume inspired by an earlier ACX post.
Source: astralcodexten.com
