TL;DR
Astral Codex Ten has opened organizer sign-ups for its Fall Meetups 2026, a worldwide series of reader gatherings. Organizers must submit a form by October 9; the meetup list will be published around October 10, with events held between October 16 and November 30.
Astral Codex Ten (ACX) has issued its call for volunteer organizers for Fall Meetups 2026, the blog’s recurring worldwide series of in-person reader gatherings. According to the announcement, written by Meetups Czar Skyler, interested organizers must fill out the organizer form by October 9; the full list of meetups will be published around October 10, and the events themselves will take place anywhere between October 16 and November 30.
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The post lays out a simple four-step plan: interested organizers submit the form by October 9, the meetup list is published around October 10, meetups run between October 16 and November 30, and participants then, in the announcement’s words, “have more meetups and have more fun throughout the year.” The organizer form asks for a time, date, location, and contact method, along with questions about how excited the volunteer is and what kinds of meetups they like running.
The announcement distinguishes these events from the recent college effective altruist group meetups, describing these as “the normal meetups for ineffective selfish people of all ages.” The recommended format is an open social: no prepared activity or discussion questions are required, and Skyler notes that promotion is largely handled by Scott Alexander (the blog’s author) and Skyler, reducing the burden on local organizers.
According to the announcement, the bar for organizing is deliberately low. The stated minimum requirements are picking a time and date, choosing a local cafe or park, optionally writing “ACX” on a piece of paper with a sharpie, and showing up. Skyler, describing himself as calibrated on the question, writes that he is “99% confident you’re going to do at least okay” as a first-time organizer. Optional improvements include name tags, water, snacks, and a mailing list or group chat for future events; Skyler says he can reimburse costs such as water bottles, name tags, and snacks, while noting he is “very slow at it this year.”
Why Readers and Cities Should Care
For ACX readers, the event is the main recurring mechanism for meeting other readers of the blog in person. The announcement emphasizes that organizing a single meetup does not commit someone to organizing indefinitely, but that volunteers who continue often shape their local group’s character, citing “founder effects” on group composition.
The announcement also flags a recurring failure mode: cities with active communities sometimes go unlisted because everyone assumes someone else will volunteer. The post cites Berkeley, California — described as the “unofficial rationalist capital of the world” — as having gone three years without a local volunteer, requiring an organizer from Boston to step in, while Seattle routinely draws three to five volunteers. A preliminary list of existing volunteers is available, and the post encourages readers in unlisted cities to sign up regardless.
Events are open-format by design. The announcement advises against mandatory group activities for ACX Everywhere meetups — specifically warning against making everyone watch a PowerPoint presentation — while saying optional extras such as games on a table are fine.
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How the Meetup Series Works
ACX Everywhere is a recurring seasonal program run in connection with the Astral Codex Ten blog, coordinated by a figure given the informal title of “Meetups Czar,” currently Skyler. The format is consistent from season to season: a public call for organizers, a published list of worldwide locations, and a window in which events occur — for this season, October 16 through November 30, 2026.
The announcement follows a separate round of meetups aimed at college effective altruist groups, which the post explicitly distinguishes from these all-ages gatherings. Recommended venues, per the post, are easy to reach, not too loud, offer seating and access to water or toilets, and make it easy to move between conversations. Public parks near cafes, mall food courts, and pubs or bars are cited as workable options, though bars are described as worse suited for college students and parents with children. Hosting at a private residence is listed as viable but involves posting an address online.
“If you’re willing to organize an ACX Everywhere meetup for your city, please fill out the organizer form by October 9th.”
— Skyler, ACX Meetups Czar
What the Announcement Leaves Open
The announcement does not specify how many cities or countries are expected to participate this season, and the preliminary volunteer list is subject to change as more forms come in before the October 9 deadline. Exact meetup times, dates, and venues will not be known until the full list is published around October 10.
Reimbursements for organizer expenses such as snacks and name tags are offered, but the organizer himself notes processing is “very slow” this year, so timing of repayment is not guaranteed. Whether any given city will have a meetup depends entirely on local volunteers stepping forward; the post states that most seasons at least one active group fails to appear on the list for that reason.
Key Dates Ahead for the Season
The immediate milestone is the October 9 organizer form deadline. After that, the compiled list of worldwide meetups is expected to be published around October 10, giving attendees roughly a week to find an event near them before the season window opens on October 16. Events will run through November 30.
Readers whose cities are absent from the preliminary volunteer list can still submit the form before the deadline. The announcement also offers additional organizing advice on request, and organizers are encouraged to set up mailing lists or group chats so that local gatherings can continue informally after the season ends.
Key Questions
How do I organize an ACX Fall Meetup in my city?
Fill out the organizer form linked in the Astral Codex Ten announcement by October 9, 2026. The form asks for a time, date, location, and contact method, plus a few questions about your preferences as an organizer.
When and where do the meetups take place?
Meetups can be held anywhere between October 16 and November 30, 2026, at a venue of the organizer’s choosing. Recommended venues include public parks near cafes, mall food courts, and quiet cafes; the full list of locations will be published around October 10.
Do I need experience or a prepared activity to run a meetup?
No. According to the announcement, the minimum is picking a time, date, and venue, and showing up — a sign is optional. Open socials with no structured activity are described as the easiest format, and optional extras like name tags, water, snacks, and games are left to the organizer’s discretion.
What if my city already has an ACX group or a listed volunteer?
The announcement encourages you to volunteer anyway, keeping a preliminary list of existing volunteers. It warns that cities sometimes go unlisted because everyone assumed someone else would sign up, citing Berkeley going three years without a local volunteer.
Can organizers get reimbursed for expenses?
Yes, for items such as water bottles, name tags, and snacks, according to the announcement — though the Meetups Czar cautions that reimbursement is being processed slowly this year.
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