Scandinasian professor of network science
Joined April 2009
- Tweets 6,222
- Following 1,108
- Followers 4,948
- Likes 4,917
511 Photos and videos
Petter Holme retweeted
May 28
Chapter 13 highlight!
Jari Saramäki & @pholme on temporal networks.
Social interactions are not static links. They happen in time, in sequence, and that timing shapes diffusion, influence, and contagion.
A great chapter on why “when” matters as much as “who.”
May 14
Chapter 12 highlight!
@Fede_Botta
on using online images for computational social science. Images are not just decoration; they shape attention, emotion, identity, and misinformation. A great overview of visual data, computer vision, and the future of multimodal CSS research.
2
2
1
1,426
Mar 1
one season follows another . . my mix-tape for the spring 2026. 90 minutes, to fit your BASF:
open.spotify.com/playlist/02…
1
168
10 Dec 2025
Blog time!
We feel that we understand things when certain patterns of explanations are in place. If reality doesn't follow those patterns, our understanding suffers. On to the 3rd of such eureka fallacy I've blogged about: explanation by optimization.
petterhol.me/2025/12/10/the-…
2
305
26 Nov 2025
Time for another mixtape to get you into that wintery mood. 🎶 A cassette-friendly 90 min, of course.
open.spotify.com/playlist/15…
253
20 Oct 2025
arXiv alert! 📄🚨
A review paper about the physics of news, rumors, and opinions
arxiv.org/abs/2510.15053
w @manlius.bsky.social @sarawalk.bsky.social Guido Caldarelli et al.
11
54
2,782
Petter Holme retweeted
11 Oct 2025
Floating Points Live 📍Mode Festival Sydney
1
36
210
8,163
8 Oct 2025
arXiv alert 📄🚨 arxiv.org/abs/2510.05743 w Milena Tsvetkova
Such a fun paper to write! The background of today’s social/behavioral science w AI agents. The history itself is a roller-coaster ride connecting many of the big themes of the last century of human-centric science 1/3
1
2
9
574
8 Oct 2025
The main theme is how entwined we are with the technology we use to study ourselves—how readily we accept replicas of ourselves and our environment as tokens of scientific insight.
2/3
1
1
169
8 Oct 2025
Another theme is the revolutionary change LLM chatbots brought about. The shift from the big-data era of AI as super-human predictors to AI as human simulacra. I.e., from a mainstream science viewpoint, a change to a methodologically more familiar ground.
3/3
2
152
Petter Holme retweeted
24 Sep 2025
Jia et al. experimentally show that when individuals can tailor their actions to each neighbour - a freedom termed social networking agency - they display higher cooperation, trust and fairness in economic games. @_IvanRomic @pholme
nature.com/articles/s41562-0…
13
34
3,420
24 Sep 2025
New paper in NHB 📄🚨
We ran extensive experiments to show that making the rules of some canonical economic games looser makes people more cooperative
nature.com/articles/s41562-0…
10
353
22 Aug 2025
A bit early, but who could wait? A C90 mixtape for the best of seasons. 🎶
open.spotify.com/playlist/1r…
240
13 Jul 2025
(a bit late, but) this is a preprint/project I really have enjoyed! They might talk like us, but they surely don't learn like us. 📄🚨
arxiv.org/abs/2506.16163
1
2
11
798
22 May 2025
The Nordic trick—without two-digit temperatures (C) in the forecast, let's define summer as a state of mind. Which, of course, needs a mixtape: 🎶
open.spotify.com/playlist/6C…
1
1
331
7 May 2025
New blog post! 📯⭐
About how our love for symmetry can stop us from seeing the truth.
petterhol.me/2025/05/07/symm…
3
7
555
Petter Holme retweeted
2 Apr 2025
Prospective postdocs, don't miss this opportunity to work with @eleanorapower
jobs.lse.ac.uk/Vacancies/W/2… (See also rep2si.github.io/ )
1
2
878
Petter Holme retweeted
12 Feb 2025
21_21 DESIGN SIGHT企画展「ゴミうんち展」いよいよ今週末、日曜日までです。
#21_21designsight #pooploop
2
13
87
7,997
9 Feb 2025
I channeled my inner Marvin Minsky to give a different perspective on AI science. It ended up being about how our lazy attitude toward our language stops science from its (utopian-level) full potential … and stuff.
petterhol.me/2025/02/09/essa…
2
8
933
24 Jan 2025
5-6 years ago, I coded Picasso's "constellation drawings" (1924) into adjacency lists for network fans out there. It's about time to share them publicly: github.com/pholme/constellat…
Disclaimer: They are probably pretty buggy (see the Readme)
3
8
693