Andrew Perfors
@perfors.net
Prof at UniMelb. I'm a computational cognitive scientist studying human inference, learning, information systems, culture, and (mis/dis)info. Nerd & opinionated loudmouth in Oz, originally from America, citizen of both. Parent of two. 🏳️⚧️ perfors.net
We released a trove of disclosure records that detail the finances of more than 1,600 Trump appointees, including former lobbyists, industry executives and at least a dozen officials who declined to identify former clients. Explore the database:
Explore Financial Disclosures From President Trump and 1,600 of His Appointees - ProPublica
Use this database to explore potential conflicts of interest for President Donald Trump and his team. The documents disclose positions officials have held outside government, their assets and their de...
projects.propublica.org
I saw something last week I have been thinking of every day since. It brings joy into my darkest moments. I will tell it to you all now
Pretty neat example of real change made by normal people! ☺️ Yackandah is "an unlikely blueprint on how Australia might navigate the shift to renewable energy ... through local ownership, community actions and decisions made around kitchen tables." www.sbs.com.au/news/article...
The 'secret sauce' behind the tiny town that's cracked Australia's energy problem
This town isn't waiting for the energy transition — it's powering it.
sbs.com.au
Someone on here shared this series a few months ago, and thank you, because I inhaled the videos. Re-sharing because I think it's a great intro to large language models for lay people (like me). Dr. Andrew Perfors hosts this on YouTube. www.youtube.com/playlist?lis...
All about AI - YouTube
The series is intended for normal people who want to learn more about AI – students, teachers, parents, people with office jobs, CEOs, retail workers, firefi...
youtube.com
Back in May I gave an informal talk all about disinformation, no slides, in a bar. It was super fun and at one point I got the entire bar to chat "Andy is great" so that's now a nice core memory 😂 Anyway, it's now been turned into a podcast so check that out if you're interested!
Last month, Melbourne bars turned into classrooms for the night. Andy Perfors on disinformation. Michelle Jongenelis on harm to young people. Missed it? The podcast’s out: mdhs.unimelb.edu.au/engage/alumn... @perfors.net @unimelb.edu.au @mcbc-unimelb.bsky.social @cogneurohubmsps.bsky.social
Society works because we assume most people are decent. Society occasionally fails for the same reason.
One of the first studies from my PhD is out now in JEP:G 🥳We tested whether people can infer the truth from teachers who were either helpful, misleading, or randomly sampling. With Keith Ransom and @perfors.net psycnet.apa.org/fulltext/202...
Another fun paper! We asked what words people find easiest to predict in a sentence, which is a good way to study how we represent lexical concepts. Found that people rely on more than just predictive statistics - it's more about which words are central in our semantic association networks.
📄 New paper out in Collabra: Psychology. This work (with @perfors.net) shows how subtle differences in language use between humans & LLMs can be captured by measures of vocabulary centrality. 🔗 doi.org/10.1525/coll... @ucpress.bsky.social
So proud to share this work! A deep dive on how good people are at learning from others when we don't know if they're helpful (with cool models! and several experiments!). tl;dr: It's super hard and even optimal Bayesian models struggle. People have a strong bias to assume others are helpful...
One of the first studies from my PhD is out now in JEP:G 🥳We tested whether people can infer the truth from teachers who were either helpful, misleading, or randomly sampling. With Keith Ransom and @perfors.net psycnet.apa.org/fulltext/202...
Most fun you can have with your clothes on. I'm quoting my longtime friend, Susan Shwartz. She's 112% right.
Seriously it’s like there is a giant chunk of tech people who don’t understand that when you’ve learned how to write, you feel proud, you look forward to doing more of it, you cheerfully neglect your other work just so you can write more
Proud to have been a part of this effort!
Humans have a remarkable capacity for efficient, intelligent reasoning. In a new working paper, @perfors.net and I discuss how our ability to reason from *social* information is one way that we achieve this capacity. osf.io/preprints/ps...
Lots of tech dudes think the "idea" is the important part of creating, not the creative journey you take through work to give that idea actual meaning. Ideas are the easiest, cheapest and least fulfilling part of it. Giving ideas life through work, and sharing that work with others, is the stuff.
Seriously it’s like there is a giant chunk of tech people who don’t understand that when you’ve learned how to write, you feel proud, you look forward to doing more of it, you cheerfully neglect your other work just so you can write more
Every time I log onto Zoom, it asks if I want AI help. I click no, don't ask again. It asks again Every document in Acrobat asks if I want an AI summary What exactly would a summary of a knitting pattern be, an image of the final project? I really just want AI to get up off my ass at this point.
hey, if AI proponents hadn’t been making up nonsense about AI tools while forcing them on us, then maybe people wouldn’t reflexively block AI tools, even when they actually work. that’s not on normies for being rational consumers. that’s on AI proponents for being systematically full of shit
You would get so many more amazing books if you had Universal Basic Income. Not even the most dream-scenario AI could compete with the creativity of a world of authors no longer afraid of affording rent.
What's something that experts/practitioners in your field universally agree upon, but that remains a "hot take" among the general public?
Social movement scholar here to comment on No King again. a 🧵: These protests are important b/c: 1.) as sustained image events, protests offer evidence of continued disapproval of the direction the country is going and disavowal of the country's leadership.
The NY Times saves its harshest skepticism for progressives. Instead of being impressed by 3,000+ coordinated protests, NYT dismisses the value of “hitting a number” and asks if No Kings will be “a primal scream that fades into a whimper.” F off, NY Times. We'll defeat fascism w/o you. (Gift link)
thoughts on today: 1) the protests are good, actually 2) you should go to one of you can 3) it will do you good to see how many other people also hate this guy 4) you might meet people who you can organize with 5) there are more of us than there are of them 6) we are going to win
The AI economy looks...really precarious. So @matteowong.bsky.social & I did a bunch of reporting to try to figure out what happens when a potential bubble collides with a war in Iran and a potential resource shortage. The answer is...arguably the most dire stuff i've heard from smart ppl in a while
The AI Boom Wasn’t Built for the Polycrisis
“There are too many ways for it to fail for it not to fail.”
theatlantic.com
The news has moved on, but ICE is still in Minneapolis. My neighbors are still patrolling streets, driving strangers to work, and providing aid. As a photojournalist at @propublica.org, I wanted to know: What do they look like in their daily lives? So I picked up my camera 👇
We don't have to submit. I've said a long time that inevitability is the first lie of fascism. Think about that when AI boosters say there's no choice. There is. There always is.
after much deliberation and giving AI the benefit of the doubt, Wikipedia editors have had enough of AI slop. New policy bans LLM generated content, periodt www.404media.co/wikipedia-ba...
Well, I am not sure what my analysis here is worth, but here is my 7,500 word primal scream of a military historian's take on the War in Iran. My best summary: this war is dumb as hell. acoup.blog/2026/03/25/m...
Miscellanea: The War in Iran
This post is a set of my observations on the current war in Iran and my thoughts on the broader strategic implications. I am not, of course, an expert on the region nor do I have access to any spec…
acoup.blog
Funny thing about American mass media is how woke content is broadly popular, routinely pays for itself, and sometimes goes blockbuster, whereas right-wing content is a narrow niche that rarely reaches breakeven, never goes blockbuster, and usually requires immense subsidies for it to exist at all.
Six months into Bari Weiss’ overhaul of CBS News, new ratings data obtained by Status shows its flagship programs are shedding viewers at an alarming rate, collapsing to historic lows and accelerating the network’s decline. Details in @status.news: www.status.news/p/cbs-news-r...
Sorry folks you’re going to have to be sincere and earnest and uncool and otherwise lame if you want to defeat fascism
Cringe is praxis
Strong recommendation to teaching faculty to just say no to this stuff, even if you are AI curious/enthusiastic. This is meant to reduce faculty autonomy and capture human labor with automation. You're selling out your future self and the profession as a whole. www.insidehighered.com/news/tech-in...
Canvas Unrolls AI Teaching Agent
The new AI agent aims to save faculty time on “low-value tasks,” but stops short of fully automating grading. But some experts worry that the rise of agentic AI could lead to a dead classroom, where c...
insidehighered.com
Thread. I'm begging people to realize how much we've already given in just the past 25 years. I'm old enough to remember when surveillance wasn't ubiquitous and before ICE or the TSA existed. There was even a time when the average cop wasn't kitted out for full on urban warfare.
Today it's the airports, but soon ICE will be omnipresent in our lives unless they are stopped. Public spaces. The polling place. You name it. This is textbook authoritarianism and as long as the corruption of liberal democracy continues there will be more and more power vacuums for the fascists.
spent a lot of the weekend reading stuff and i’m no expert but it sure feels like this week is poised to give off march 2020 vibes
Work is a social relationship. We create things together. This is especially true of UX design. AI's value proposition is freedom from relationships. So when designers champion AI tools, we are not making ourselves layoff-proof. We are reinforcing a system that frames us as unnecessary friction.
UX works through social relationships. AI tools are erasing them.
Stakeholders want to vibe code and have designers clean up after them afterwards. But rather than helping with velocity, there is just more noise and more work for everyone.
productpicnic.beehiiv.com
An incredible resource #statssky
Statistical Rethinking 2026 is done: 20 new lectures emphasizing logical and critical statistical workflow, from basics of probability theory to causal inference to reliable computation to sensitivity. It's all free, made just for you. Lecture list and links: github.com/rmcelreath/s...
I just took the 10yo on a really challenging ropes course up in the trees. The combo of physical exertion and adrenaline reminds me of much of what I miss about rugby, but the best part was seeing my neurodivergent, anxious kid face his fears and learn that he could do something terrifying and hard.