Andrea Baronchelli
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baronca.bsky.social
Andrea Baronchelli
@baronca.bsky.social
Decentralised networks of humans and machines
https://www.andreabaronchelli.com/
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New paper alert. "More is different" & the LLMs.
LLMs are usually studied in isolation. But what happens when they start interacting? We explored this by looking at their collective behaviour.
Work with @ariel-flint.bsky.social and @lajello.bsky.social
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Reposted by Andrea Baronchelli
New preprint: More is different for AI multi-agent systems - but what does more mean?

arxiv.org/abs/2510.22422

With @ariel-flint.bsky.social, @lajello.bsky.social and Romualdo Pastor-Satorras.
October 28, 2025 at 11:07 AM
Reposted by Andrea Baronchelli
Nowadays, often the justification for choosing M$ is that it claims to be GDPR compliant, which just means that M$ can afford getting sued for any breach, which of course happens all the time. And universities don't care about potential breaches themselves, only about liability, which M$ absorbs.
We had this discussion 25 years ago.
A colleague calculated that they could hire a full-time administrator for Linux instead of paying the MS licences. Most thought of it as absurd idea ;-)
November 6, 2025 at 4:11 PM
Reposted by Andrea Baronchelli
Group size effects and collective misalignment in LLM multi-agent systems arxiv.org/abs/2510.22422
Group size effects and collective misalignment in LLM multi-agent systems
Multi-agent systems of large language models (LLMs) are rapidly expanding across domains, introducing dynamics not captured by single-agent evaluations. Yet, existing work has mostly contrasted the be...
arxiv.org
October 29, 2025 at 8:49 AM
New preprint: More is different for AI multi-agent systems - but what does more mean?

arxiv.org/abs/2510.22422

With @ariel-flint.bsky.social, @lajello.bsky.social and Romualdo Pastor-Satorras.
October 28, 2025 at 11:07 AM
Reposted by Andrea Baronchelli
Not being an AI-doomer, but having experienced in my own department over the past 7 years a steady erosion of faculty governance norms and diminished prioritization of research-oriented pedagogy, this tracks. Let faculty and faculty interests lead the way, rather than administrators/regents
"AI returns to the university as part of a broad effort to further corporatize universities, vocationalize higher-education instruction, and diminish both research and research-based pedagogy."
October 24, 2025 at 3:33 PM
Reposted by Andrea Baronchelli
“LLMs don’t understand.”
Of course. That was never the point.
The point is: we’re already using them as if they do —
to moderate, to classify, to prioritize, to decide.
That’s not a model problem.
It’s a systemic one.
The shift from verification to plausibility is real.
Welcome to Epistemia.
October 20, 2025 at 5:31 PM
Reposted by Andrea Baronchelli
'I once met a former bodyguard of one billionaire with his own "bunker", who told me his security team's first priority, if this really did happen, would be to eliminate said boss and get in the bunker themselves. And he didn't seem to be joking.'
Tech billionaires seem to be doom prepping. Should we be worried?
The debate is ramping up about what happens if - or when - computer intelligence overtakes humans
www.bbc.com
October 10, 2025 at 11:28 AM
Reposted by Andrea Baronchelli
Researchers say Israeli government likely behind AI-generated disinfo campaign in Iran

cyberscoop.com/citizen-lab-...
Researchers say Israeli government likely behind AI-generated disinfo campaign in Iran
The group leveraged dozens of social media accounts and “routinely used” AI-generated imagery and video to stoke unrest among Iran’s population, according to Citizen Lab.
cyberscoop.com
October 6, 2025 at 2:07 PM
Reposted by Andrea Baronchelli
It was a ton of fun to play a small role in this project lead by the brilliant Marta Ewa Lech & @jonassjuul.bsky.social. A lot of drama & change in the world of music reflected in the song-dynamics of the Billboard Hot 100!
New paper out in EPJ Data Science!

We analyze 65 years of Billboard Hot 100 data to ask:

🎵Are songs moving differently up and down the chart nowadays?
📉 Are hits shorter-lived?
📈 Or do superstars dominate more than ever?

Paper: epjdatascience.springeropen.com/articles/10....
🧵 1/7
September 22, 2025 at 9:27 AM
There are two ways to deal with LLMs in our work

One is the path of abundance: automate everything and multiply publications at the expense of quality

The other is the path of focusing on the soul of the work, on the questions that still matter - to you - when everything else has been made trivial
September 2, 2025 at 10:51 AM
Reposted by Andrea Baronchelli
Breaking: the court ruling in Wikipedia's legal challenge to the Online Safety Act categorisation regime has just been handed down. The court dismissed Wikipedia's challenge. This is bad. This is very bad. wikimediafoundation.org/news/2025/08...
Wikimedia Foundation Challenges UK Online Safety Act Regulations – Wikimedia Foundation
UPDATE: On Monday, 11 August, the High Court of Justice dismissed the Wikimedia Foundation’s challenge to the UK’s Online Safety Act (OSA) Categorisation Regulations. While the decision does not provi...
wikimediafoundation.org
August 11, 2025 at 9:57 AM
Reposted by Andrea Baronchelli
Presented our work, “Cultural and Cognitive Insights from 2.6 Billion Drawings,” at @ic2s2.bsky.social this morning. Big thanks to Mauro Martino, Nima Dehmamy, @douglasguilbeault.bsky.social, @lajello.bsky.social, and @baronca.bsky.social for the collaboration ✨

Stay tuned for more results!
July 23, 2025 at 3:20 PM
Looking forward to it!
We are more than happy to announce that @baronca.bsky.social (University of London), an absolute authority on the study of decentralized networks of humans and machines, will be present as a speaker at @lanetconference.bsky.social!

#ComplexSystems #LANET2025
Uruguay lanet2025.uy
July 7, 2025 at 11:12 AM
Reposted by Andrea Baronchelli
🚨Are moral judgements biased by the gender of the subject?
We find *no* direct effect when looking at Reddit!

Our causal study design is based on carefully matching similar situations that people with different genders experience (and share).

Study led by @loreb92.bsky.social

rdcu.be/eumlQ
Moral judgments in online discourse are not biased by gender
Scientific Reports - Moral judgments in online discourse are not biased by gender
rdcu.be
July 2, 2025 at 7:59 AM
Reposted by Andrea Baronchelli
Our preprint “How Malicious AI Swarms Can Threaten Democracy” is now online.

We show how coordinated multi-agent LLM swarms can infiltrate communities, craft synthetic grassroots “consensus,” and erode institutional trust—and what we can do now to stop it.

osf.io/preprints/os...
OSF
osf.io
June 3, 2025 at 5:57 PM
Reposted by Andrea Baronchelli
New paper hot off the press www.nature.com/articles/s41...

We analysed over 40,000 computer vision papers from CVPR (the longest standing CV conf) & associated patents tracing pathways from research to application. We found that 90% of papers & 86% of downstream patents power surveillance

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Computer-vision research powers surveillance technology - Nature
An analysis of research papers and citing patents indicates the extensive ties between computer-vision research and surveillance.
www.nature.com
June 25, 2025 at 5:29 PM
At #ICWSM? Here's a starter pack for you :)
bsky.app/starter-pack...

Check also "Bootstrapping Social Networks: Lessons from Bluesky Starter Packs" ojs.aaai.org/index.php/IC...
June 26, 2025 at 9:41 AM
A brief follow-up on the complex systems foundations of our LLM population study, sparked by ongoing debate. And why they matter for studying AI collectives more broadly.
arxiv.org/abs/2506.18600
With @ariel-flint.bsky.social and @lajello.bsky.social
June 24, 2025 at 3:24 PM
Average day in AI discourse:
- The big tech paper saying LLMs are harmless toys,
- The influencer claiming LLMs are an existential threat.
June 10, 2025 at 4:10 PM
👇👇👇
The combination of #artificialintelligence and #socialmedia poses a threat to democracy.

Our new paper explains how AI swarms can fabricate grassroots consensus, fragment shared reality, engage in mass harassment, interfer with elections, and erode institutional trust: osf.io/preprints/os...
June 4, 2025 at 7:22 AM
Reposted by Andrea Baronchelli
Only two weeks left to apply!
My department is hiring! Permanent faculty job (research + teaching) in applied maths. Mathematical biology would be highly appropriate. We're a friendly department in a large university in central London, recently merged with a big medical school. Apply by 1st June. www.jobs.ac.uk/job/DMY889/l...
Lecturer in Applied Mathematics at City St George’s, University of London
Apply for the Lecturer in Applied Mathematics role on jobs.ac.uk, the top job board for academic positions in higher education. View details and apply now.
www.jobs.ac.uk
May 18, 2025 at 4:11 PM
New paper alert. "More is different" & the LLMs.
LLMs are usually studied in isolation. But what happens when they start interacting? We explored this by looking at their collective behaviour.
Work with @ariel-flint.bsky.social and @lajello.bsky.social
1/
May 15, 2025 at 10:03 AM
Oral exams are the only true way to assess students - except in specific, marginal cases like parts of Maths or Physics. This has always been true, and we can’t ignore it anymore.
May 8, 2025 at 1:31 PM