The Aporia · Open Thread 454

Open Thread 454

Read the original at Astral Codex Ten ↗

Cite

APA MLA Chicago

Alexander, S. (2026, October 5). Open Thread 454. Astral Codex Ten. https://www.astralcodexten.com/p/open-thread-454

Dated when The Aporia collected the article, usually within hours of publication. Check the original for its exact date and byline.

Quick Summary

This article is a weekly thread inviting discussion on various topics related to ACX, an organization with online forums and in-person meetups worldwide. It includes updates such as a change in the time and place of a BYU college meetup, completion of Fatima document translations by Nikita Sokolsky, availability of past book reviews compiled into e-books by Rob Ennals, and a call for physicians to join Physicians For AI Safety. The author also apologizes for recent sparse writing due to busyness.

Written by AI on 2026-10-05, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

This is a weekly update from the Astral Codex Ten community where members discuss various topics. Scott Alexander mentions updates on EA college meetups at Brigham Young University, noting a change in time, date, or place. A reader named Nikita Sokolsky has translated additional Fatima documents from Portugal into English and made them available online. Additionally, Rob Ennals compiled earlier years' book reviews into e-books for easier access. The post also advertises Physicians For AI Safety, inviting interested physicians to sign their open letter. Alexander apologizes for reduced recent output due to a busy schedule.

Written for “Open Thread Discussion” on 2026-11-03, grounded in this article and the 0 other(s) covering the same event.

Compared with similar articles

This article reads unscored and hedges 0% of its claims. Each row says how that neighbour differs.

Open Thread Different event

Reason

Outlet record 67/100

“The articles have different dates and appear to be separate weekly open threads.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles have different dates and titles, indicating they are separate weekly open threads rather than the same specific occurrence.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles are open threads posted on different dates.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles are open threads posted on different dates, indicating separate events despite similar content and purpose.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles are different open threads posted on separate dates.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles are weekly open threads on different dates and do not describe a single specific incident.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles are weekly open threads posted on different dates, likely not referring to a single specific incident.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles are weekly open threads on different days and do not describe a single specific incident.”

Open Thread Different event

Reason

Outlet record 67/100

“The articles are open threads on different platforms with no indication of describing a single specific incident.”

How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted

sentences that state something as happening or true

Uncertain

0 of 10 hedged ("reportedly", "may", "according to")

Leaning

not political

takes no side on a contested political question

Publisher signals

not measured

these signals count newsroom corrections; Commentary has none to count

Outlets on this story

Other

Same framing elsewhere

articles that frame the event the way this one does

Analyzed 2026-10-05 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability

Source leaning vs. consistency

Publisher

Astral Codex Ten · 65 article(s) · 4 correction(s) detected

No corrections detected for this publisher. That may mean careful reporting, or simply that nothing has been checked.

Who wrote this

Scott Alexander

52 article(s) here · 1 carrying a prediction

🔮 One of the leading AI superforecaster companies, FutureSearch, is hiring.

2026-11-02 · assertive framing · Open Thread 458

🔮 A picaresque (broadly speaking) is about a lowlife wandering around having comical misadventures; Huckleberry Finn (1884) would be a notable American example.

2026-10-30 · assertive framing · Your Book Review: The History And Adventures Of An Atom

🔮 On average, commenters will end up spotting evidence that around two or three of the links in each links post are wrong or misleading.

2026-10-29 · assertive framing · Links For October 2026

🔮 California State Propositions Proposition 1: Authorizes $11.25 billion in bonds to build affordable housing Supporters claim it will build (or renovate) 40,000 homes; I asked an AI superforecaster1 to predict the true number, and it guessed that 22,000 would actually get built.

2026-10-28 · assertive framing · My California Ballot, 2026

🔮 I may have more of these in the upcoming week.

2026-10-19 · assertive framing · Open Thread 456

🔮 [This is one of the finalists in the 2026 book review contest, written by an ACX reader who will remain anonymous until after voting is done.

2026-10-17 · assertive framing · Your Book Review: Storm Of Steel

🔮 AI companies like Anthropic and OpenAI have long mentioned the possibility that their products could be existentially dangerous, but this has recently crescendoed into even more dire warnings, including suggestions that we have to pace the frontier, ie coordinate to slow AI progress.

2026-10-15 · assertive framing · AI Safety Is Not A Corporate Plot

🔮 [This is one of the finalists in the 2026 book review contest, written by an ACX reader who will remain anonymous until after voting is done.

2026-10-10 · assertive framing · Your Book Review: We Present Television

🔮 When I objected that maybe we should wait for you to accept before figuring out details, they all said great, that’s absolutely right, they would contact you right away.

2026-10-06 · assertive framing · An Open Letter To Steven Pinker On AI

🔮 I’m pretty busy and will try to make up for it after that changes.

2026-10-05 · assertive framing · Open Thread 454

Also by Scott Alexander

Open Thread 458

2026-11-02 · Astral Codex Ten

Your Book Review: The History And Adventures Of An Atom

2026-10-30 · Astral Codex Ten

Links For October 2026

2026-10-29 · Astral Codex Ten

My California Ballot, 2026

2026-10-28 · Astral Codex Ten

Nothing else under this byline is closely related to this article, so these are simply their most recent.

All 52 articles by Scott Alexander →

Topics

ACX Brigham Young University Discord Fatima Portugal

Subjects

ACX ORG · 1× Ana PERSON · 1× Brigham Young University ORG · 1× Discord ORG · 1× Fatima PERSON · 1× Nikita Sokolsky PERSON · 1× Physicians For AI Safety ORG · 1× Portugal GPE · 1× Rob Ennals PERSON · 1×

Narrative

4: Physicians For AI Safety wishes to advertise that they exist, are interested in talking to any physicians interested in AI safety, and have an open letter that such people can sign. 5:

framing: assertive · carried by 1 article(s) · first seen 2026-10-05

🔮 I’m pretty busy and will try to make up for it after that changes.

2026-10-05 · Astral Codex Ten

Open Thread 454 · assertive framing

Claims (10 extracted, 0 hedged)

Post about anything you want, ask random questions, whatever. asserted

you → post → questions

ACX has an unofficial subreddit, Discord, and bulletin board, and in-person meetups around the world. asserted

ACX → have → world

Most content is free, some is subscriber only; you can subscribe here. asserted

you → subscribe → ?

Brigham Young University has changed its time/date/place, please check the list for more information. asserted

University → change → information

2: Reader Nikita Sokolsky has completed his work getting some extra Fatima documents from Portugal and translating them into English. asserted

Sokolsky → complete → English

You can find them at https://fatima-1917.com/ . asserted

You → find → https://fatima-1917.com/

And thanks again to Ana for handling the parts that required Portuguese profiency. asserted

that → handle → profiency

3: Rob Ennals, who made this year’s book review contest site, has gathered the reviews from earlier years into epubs here. asserted

who → make → epubs

4: Physicians For AI Safety wishes to advertise that they exist, are interested in talking to any physicians interested in AI safety, and have an open letter that such people can sign. 5: asserted

people → wish → that

I’m pretty busy and will try to make up for it after that changes. asserted

that → ’m → it