| Unresolvable |
Factual |
19 Oct 2026 |
MNX lets people sell futures representing AI company stocks, bet on AI company revenues, and trade on targets such as the Epoch Capabilities Index.
Factual · 19 Oct 2026 |
Economics and markets |
| Mostly true |
Factual |
19 Oct 2026 |
MNX, a project of Manifold Markets co-founder Stephen Grugett, is a real-money prediction market on AI.
Factual · 19 Oct 2026 |
Economics and markets |
| Resolved true |
Factual |
19 Oct 2026 |
Goodheart Labs is working on Common Notes, described as Twitter Community Notes but for everything.
Factual · 19 Oct 2026 |
Technology |
| Unresolvable |
Factual |
19 Oct 2026 |
An alternate survey asks respondents to predict how Scott Alexander would answer the first survey, to separate worldview differences from random noise.
Factual · 19 Oct 2026 |
Their own work or organisation |
| Unresolvable |
Factual |
19 Oct 2026 |
Common Notes is implemented through AIs writing most notes, users writing and voting on notes, and a browser extension that shows the system on any site, including ACX.
Factual · 19 Oct 2026 |
AI capabilities |
| Unresolvable |
Factual |
19 Oct 2026 |
ACX meetups in Rockville, Northampton, Eindhoven, Great Barrington, Cairo, Portland and Sofia have had changes announced as of October 2026.
Factual · 19 Oct 2026 |
Their own work or organisation |
| Unresolvable |
Factual |
19 Oct 2026 |
ACX's main San Francisco endorsement for the 2026 election is Scott Wiener for Congress.
Factual · 19 Oct 2026 |
Their own work or organisation |
| Unresolvable |
Factual |
19 Oct 2026 |
The Boston ACX meetup group has finished its Greater Boston general election voting guide.
Factual · 19 Oct 2026 |
Their own work or organisation |
| Own records only |
Factual |
19 Oct 2026 |
Scott Alexander is continuing to work on modeling, and maybe later automating, parts of AI grantmaking.
Factual · 19 Oct 2026 |
Their own work or organisation |
| Mostly true |
Factual |
5 Oct 2026 |
Reader Nikita Sokolsky has finished obtaining extra Fatima documents from Portugal and translating them into English.
Factual · 5 Oct 2026 |
Their own work or organisation |
| Unresolvable |
Factual |
5 Oct 2026 |
Most Astral Codex Ten content is free and some is subscriber-only.
Factual · 5 Oct 2026 |
Their own work or organisation |
| Unresolvable |
Factual |
5 Oct 2026 |
Scott Alexander has written little recently on ACX and forgot to post Friday's book review entry.
Factual · 5 Oct 2026 |
Their own work or organisation |
| Resolved true |
Factual |
5 Oct 2026 |
Rob Ennals, who made this year's ACX book review contest site, has gathered reviews from earlier years into epubs.
Factual · 5 Oct 2026 |
Their own work or organisation |
| Mostly true |
Factual |
5 Oct 2026 |
Physicians For AI Safety exists, wants to talk to physicians interested in AI safety, and has an open letter such people can sign.
Factual · 5 Oct 2026 |
Field building and careers |
| Unresolvable |
Factual |
5 Oct 2026 |
Astral Codex Ten has an unofficial subreddit, Discord and bulletin board, and in-person meetups around the world.
Factual · 5 Oct 2026 |
Their own work or organisation |
| Own records only |
Factual |
3 Apr 2025 |
Scott Alexander discovers a new blogger he is super excited about about once a year.
Factual · 3 Apr 2025 |
Their own work or organisation |
| Own records only |
Factual |
3 Apr 2025 |
Typically about 1% of the people who read a blog's viral hit stick around as regular readers, based on Slate Star Codex's early growth.
Factual · 3 Apr 2025 |
Their own work or organisation |
| Unresolvable |
Factual |
3 Apr 2025 |
All humans are descended from groups that exterminated other groups, and most groups throughout history have been wiped out.
Factual · 3 Apr 2025 |
Philosophy, ethics and society |
| Unresolvable |
Factual |
3 Apr 2025 |
The general research speedup multiplier today is about a thousand times that of the Paleolithic era.
Factual · 3 Apr 2025 |
Economics and markets |
| Mostly true |
Factual |
3 Apr 2025 |
Through history, people have been reluctant to admit an AI is truly intelligent.
Factual · 3 Apr 2025 |
Philosophy, ethics and society |
| Unresolvable |
Factual |
3 Apr 2025 |
Scott Alexander said that after he moved his blog to WordPress, it received orders of magnitude more attention.
Factual · 3 Apr 2025 |
Their own work or organisation |
| Unresolvable |
Factual |
3 Apr 2025 |
Speaking about Elon Musk and SpaceX, he said he thought that in 2000 people would not have expected that someone could move two or five times faster than NASA with fairly limited resources.
Factual · 3 Apr 2025 |
Economics and markets |
| Resolved true |
Factual |
3 Apr 2025 |
Nvidia originally came from gaming.
Factual · 3 Apr 2025 |
Economics and markets |
| Resolved true |
Factual |
3 Apr 2025 |
Scott Alexander said he thinks the AI alignment community did not really expect LLMs.
Factual · 3 Apr 2025 |
AI safety and alignment |
| Unresolvable |
Factual |
3 Apr 2025 |
The AI 2027 scenario existed at an early stage as a giant spreadsheet and had not yet been written up.
Factual · 3 Apr 2025 |
AI timelines and forecasting |
| Unresolvable |
Factual |
10 Dec 2024 |
Scott Alexander cited the superiority of police deterrence over prison as an argument that lets the discussion sidestep the retribution issue.
Factual · 10 Dec 2024 |
Philosophy, ethics and society |
| Own records only |
Factual |
10 Dec 2024 |
Scott Alexander limited how much he discussed punishment-as-retribution in his original prison post because it is a culture-war scissor topic.
Factual · 10 Dec 2024 |
Philosophy, ethics and society |
| Resolved true |
Factual |
10 Dec 2024 |
Solitary confinement for prisoners might be more expensive than standard imprisonment.
Factual · 10 Dec 2024 |
Philosophy, ethics and society |
| Resolved true |
Factual |
10 Dec 2024 |
Following Roodman, Scott's original cost-benefit analysis of prison gave two conclusions: one counting prisoners' own suffering and one not.
Factual · 10 Dec 2024 |
Philosophy, ethics and society |
| Mostly true |
Factual |
10 Dec 2024 |
Most of the benefits of prison come from incapacitation rather than deterrence.
Factual · 10 Dec 2024 |
Philosophy, ethics and society |
| Unresolvable |
Factual |
10 Dec 2024 |
Scott Alexander relays that someone with experience in the field told him there are some problems with hiring police, such as requiring everyone who works in law enforcement to start as a beat cop.
Factual · 10 Dec 2024 |
Other |
| Resolved true |
Factual |
10 Dec 2024 |
Last month's issue of Asterisk (November 2024) contains an interview with Skarbek, which Scott thinks will be online shortly.
Factual · 10 Dec 2024 |
Their own work or organisation |
| Resolved true |
Factual |
10 Dec 2024 |
In the original post, Scott said that although murder was down in El Salvador, the statistics didn't really show a decline in theft.
Factual · 10 Dec 2024 |
Other |
| Resolved true |
Factual |
20 Feb 2023 |
As of 2023 the technology to offer polygenic scores to consumers definitely exists.
Factual · 20 Feb 2023 |
Technology |
| Unresolvable |
Factual |
20 Feb 2023 |
The Ukraine war was the biggest geopolitical story of 2018-2023, and Scott Alexander's 2018 predictions did not anticipate it.
Factual · 20 Feb 2023 |
Their own work or organisation |
| Unresolvable |
Factual |
20 Feb 2023 |
Scott Alexander said his biggest failure was item 10 of his 2018 predictions, where he gave Roe v. Wade only a 1% chance of being overturned.
Factual · 20 Feb 2023 |
Their own work or organisation |
| Mostly true |
Factual |
20 Feb 2023 |
As of early 2023 nobody is talking about technological unemployment, because unemployment rates are historically low.
Factual · 20 Feb 2023 |
AI, the economy and work |
| Mostly true |
Factual |
20 Feb 2023 |
impute.me may provide the consumer polygenic score service Scott Alexander predicted, but it has made no public waves.
Factual · 20 Feb 2023 |
Technology |
| Unresolvable |
Factual |
20 Feb 2023 |
As far as he could tell, writing in February 2023, none of the space tourism developments he had discussed had worked out, and the field seemed stuck in the same limbo as for the past decade and a half.
Factual · 20 Feb 2023 |
Technology |
| Resolved true |
Factual |
20 Feb 2023 |
In 2018 Scott Alexander partly abandoned his usual clear-resolution probabilistic predictions for rough guesses in his five-year predictions.
Factual · 20 Feb 2023 |
Their own work or organisation |
| Unresolvable |
Factual |
14 Mar 2022 |
Scott Alexander said that in February 2022 he had discussed problems with the Metaculus leaderboard.
Factual · 14 Mar 2022 |
Their own work or organisation |
| Resolved true |
Factual |
14 Mar 2022 |
In February 2022 Scott Alexander suggested that Manifold Markets add a loan feature to boost investment in long-term markets.
Factual · 14 Mar 2022 |
Their own work or organisation |
| Mostly true |
Factual |
14 Mar 2022 |
The probability shown in the chart in the post was almost monotonically decreasing, lower each day than the day before.
Factual · 14 Mar 2022 |
Other global risks |
| Unresolvable |
Factual |
14 Mar 2022 |
Scott Alexander said that, if he understood it right, in the study the average forecaster did worse than the average expert, but Tetlock used clever aggregation methods for his superforecasters while the CIA did not use such methods for its experts.
Factual · 14 Mar 2022 |
Science and research methods |
| Resolved true |
Factual |
14 Mar 2022 |
A team described as some of the best superforecasters in the world won the CSET-Foretell forecasting competition by a large margin, described as around twice as good as the next-best team in relative Brier score.
Factual · 14 Mar 2022 |
Science and research methods |
| Mostly true |
Factual |
14 Mar 2022 |
Early in the Russia-Ukraine war prediction markets gave Ukraine poor odds, and by March 2022 they were much more optimistic about Ukraine.
Factual · 14 Mar 2022 |
Other global risks |
| Unresolvable |
Factual |
14 Feb 2021 |
The NYT journalist has not known about Slate Star Codex for three years, so he read the edited version of the Voldemort post that told people not to take it out of context.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Mixed |
Factual |
14 Feb 2021 |
The NYT's original pitch was interest in how Scott Alexander warned early about the coronavirus pandemic and urged mask-wearing before it was standard advice.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Unresolvable |
Factual |
14 Feb 2021 |
Scott Alexander's Contra Grant post states "My research suggests no average gender difference in ability".
Factual · 14 Feb 2021 |
Their own work or organisation |
| Mostly true |
Factual |
14 Feb 2021 |
Scott Alexander said the NYT's characterisation was true only insofar as he once expressed agreement with an unrelated Charles Murray position: that telling poor people to learn to code is insufficient and a stable income is needed.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Unresolvable |
Factual |
14 Feb 2021 |
Scott Alexander received support from Steven Pinker, Larry Sanger, Jonathan Haidt, Liv Boeree and Yascha Mounk.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Own records only |
Factual |
14 Feb 2021 |
Scott Alexander was warned by people "in the know" that the NYT would publish something as negative as possible about him once it had an excuse.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Mixed |
Factual |
14 Feb 2021 |
In early 2020, Scott Alexander learned the New York Times wanted to write an article about him.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Mixed |
Factual |
14 Feb 2021 |
Scott Alexander wrote a 30,000-word condemnation of one of the right-wing figures named in the article on his blog a few years ago.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Own records only |
Factual |
14 Feb 2021 |
Scott Alexander met Peter Thiel once at a party, long before Trump was in the news, and exchanged about two sentences with him.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Resolved true |
Factual |
14 Feb 2021 |
Scott Alexander has never personally been involved in the tech industry.
Factual · 14 Feb 2021 |
Their own work or organisation |
| Unresolvable |
Factual |
21 Jan 2021 |
Scott Alexander quit his day job so his employer would not be affected by the fallout.
Factual · 21 Jan 2021 |
Their own work or organisation |
| Unresolvable |
Factual |
21 Jan 2021 |
Trolls posted Scott Alexander's real name in many places after he tried to protect his anonymity.
Factual · 21 Jan 2021 |
Their own work or organisation |
| Own records only |
Factual |
21 Jan 2021 |
Scott Alexander lost a five-digit sum in advertising and Patreon fees.
Factual · 21 Jan 2021 |
Their own work or organisation |
| Unresolvable |
Factual |
21 Jan 2021 |
Scott Alexander deleted his blog, which had 1,557 posts.
Factual · 21 Jan 2021 |
Their own work or organisation |
| Unresolvable |
Factual |
21 Jan 2021 |
While trying to restore his blog, Scott Alexander accidentally sent about three hundred emails to each of five thousand people.
Factual · 21 Jan 2021 |
Their own work or organisation |
| Unresolvable |
Factual |
21 Jan 2021 |
After Scott Alexander deleted his blog, articles about him appeared in the New Yorker, Reason, and The Daily Beast.
Factual · 21 Jan 2021 |
Their own work or organisation |
| Own records only |
Factual |
24 Jun 2020 |
The New York Times reporter told Scott Alexander that his editor absolutely prohibited writing the story without Alexander's real name and that the reporter considered the story too important to drop.
Factual · 24 Jun 2020 |
Their own work or organisation |
| Own records only |
Factual |
24 Jun 2020 |
Scott Alexander discussed with the New York Times reporter why he wanted his real name left out of the story, saying largely what he said in his public post.
Factual · 24 Jun 2020 |
Their own work or organisation |
| Unresolvable |
Factual |
22 Jan 2019 |
Of his 2018 predictions at 80%, Scott Alexander got 10 right and 3 wrong, a score of 77%.
Factual · 22 Jan 2019 |
Their own work or organisation |
| Unresolvable |
Factual |
22 Jan 2019 |
Of his 2018 predictions at 60%, Scott Alexander got 8 right and 7 wrong, a score of 53%.
Factual · 22 Jan 2019 |
Their own work or organisation |
| Unresolvable |
Factual |
22 Jan 2019 |
Of his 2018 predictions at 95%, Scott Alexander got 6 right and 2 wrong, a score of 75%.
Factual · 22 Jan 2019 |
Their own work or organisation |
| Unresolvable |
Factual |
22 Jan 2019 |
At the 95% confidence level, Scott Alexander's 2018 predictions came out only 75% correct.
Factual · 22 Jan 2019 |
Their own work or organisation |
| Mostly true |
Factual |
22 Jan 2019 |
Scott Alexander made predictions in February 2018 for the next five years.
Factual · 22 Jan 2019 |
Their own work or organisation |
| Mostly true |
Factual |
22 Jan 2019 |
Cryptocurrency crashed during 2018, after Bitcoin was around $15,000 when Scott Alexander made his 2018 predictions.
Factual · 22 Jan 2019 |
Economics and markets |
| Unresolvable |
Factual |
22 Jan 2019 |
Scott Alexander made many correlated cryptocurrency predictions for 2018, which therefore scored badly.
Factual · 22 Jan 2019 |
Their own work or organisation |
| Unresolvable |
Factual |
6 Jan 2017 |
Scott Alexander makes predictions at the beginning of every year.
Factual · 6 Jan 2017 |
Their own work or organisation |
| Unresolvable |
Factual |
31 Dec 2016 |
Setting aside the 50% bin, which he called meaningless, Scott Alexander said his main calibration deviation in 2016 was some underconfidence at the 70% level.
Factual · 31 Dec 2016 |
Science and research methods |
| Unresolvable |
Factual |
31 Dec 2016 |
Of his 2016 predictions made at 50% confidence, Scott Alexander got 8 right and 5 wrong, a score of 62%.
Factual · 31 Dec 2016 |
Their own work or organisation |
| Unresolvable |
Factual |
31 Dec 2016 |
Looking back at his 2014, 2015 and 2016 predictions, Scott Alexander said he is probably generally a little underconfident in medium-probability predictions.
Factual · 31 Dec 2016 |
Science and research methods |
| Unresolvable |
Factual |
31 Dec 2016 |
Scott Alexander makes predictions at the start of every year and scores them at the end of every year.
Factual · 31 Dec 2016 |
Their own work or organisation |
| Mostly true |
Factual |
25 Jan 2016 |
Scott Alexander makes predictions at the start of every year and scores them at the end of each year.
Factual · 25 Jan 2016 |
Their own work or organisation |
| Unresolvable |
Factual |
30 Sep 2014 |
The Implicit Association Test is one of the ways we know racism is a giant all-encompassing social factor.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Resolved true |
Factual |
30 Sep 2014 |
A recent Implicit Association Test study using political parties found unconscious partisan biases were about 1.5 times as strong as unconscious racial biases.
Factual · 30 Sep 2014 |
Science and research methods |
| Unresolvable |
Factual |
30 Sep 2014 |
In every US election cycle, liberals give unconvincing denials of the accusation that they are not sufficiently pro-America.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Mostly true |
Factual |
30 Sep 2014 |
The Nazis' outgroup was the almost-identical German Jews rather than the culturally distant Japanese.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Mostly true |
Factual |
30 Sep 2014 |
Estimates of the genetic contribution to political association range from 0.4 to 0.6.
Factual · 30 Sep 2014 |
Science and research methods |
| Mostly true |
Factual |
30 Sep 2014 |
Heritability of attitudes toward gay rights is estimated at 0.3 to 0.5, slightly higher than the heritability of homosexuality.
Factual · 30 Sep 2014 |
Science and research methods |
| Unresolvable |
Factual |
30 Sep 2014 |
In every US election cycle, conservatives accuse liberals of not being sufficiently pro-America.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Unresolvable |
Factual |
30 Sep 2014 |
In a Reddit thread of 10,401 comments asking for people against gay marriage, the author found only two commenters who opposed it, near the bottom.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Unresolvable |
Factual |
30 Sep 2014 |
Scott Alexander's hunch is that both the Red Tribe and the Blue Tribe identify "America" with the Red Tribe.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Mostly true |
Factual |
30 Sep 2014 |
Researchers have studied belief congruence theory, that belief differences matter more than demographics in forming in-groups and outgroups, for decades.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Resolved true |
Factual |
30 Sep 2014 |
Scott Alexander is a psychiatrist by profession.
Factual · 30 Sep 2014 |
Their own work or organisation |
| Unresolvable |
Factual |
30 Sep 2014 |
Every one of the cited articles criticizing America was written by an American and read almost entirely by Americans.
Factual · 30 Sep 2014 |
Philosophy, ethics and society |
| Unresolvable |
Factual |
30 Sep 2014 |
The worst reaction Scott Alexander got to a blog post was to his post about the death of Osama bin Laden.
Factual · 30 Sep 2014 |
Their own work or organisation |