New on the Arxiv: "Fragmented Movements, Connected Opponents: Analyzing the Interconnectivity of Firms and Environmental Justice Organizations in Global Socio-Environmental Conflicts" with
Dario Cottafava and Marcel Llavero-Pasquina. Check it out!
Arxiv: arxiv.org/abs/2603.29722
Posts by j.carlock
What is your favorite thing anyone has done with the Ising model?
Response to reviewer 2 #academiclife
This year marks a decade since I published my first scientific article, “Fractality à la carte: a general particle aggregation model” (Scientific Reports, 2016). Give it a check! Open access: doi.org/10.1038/srep...
New blog post:
"Higher orders need higher standards"
skewed.de/lab/posts/hi...
I discuss our current work disentangling misconceptions around "higher-order" networks: arxiv.org/abs/2602.16937
Explainer thread for the paper here: bsky.app/profile/tiag...
Using hypergraphs for your data?
Believing that hypergraphs “generalize” standard graphs to “higher order” structures?
Maybe you are conflating structure with mechanism, and this podcast is for you!
🎧 Spotify: creators.spotify.com/pod/show/com...
🎧 Apple: podcasts.apple.com/us/podcast/c...
Genuary day 20: One (noisy) line
Made with #python #numpy #matplotlib
#genuary #genuary20 #genuary2026
A long-overdue interactive version finally done
(Huge thanks to Google Gemini)
Complex Systems Topic Network: Interactive Visualization
bingdev.binghamton.edu/sayama/compl...
*The architecture of living systems*
Ambitious treatment of the physics of living systems
Some quibbles but impressive!
iopscience.iop.org/article/10.1...
#complexsystems
Network Medicine is entering a new phase: one that demands we rethink how we study, model and ultimately treat complex diseases.
www.sciencedirect.com/science/arti...
#ComplexSystems #NetworkScience #Medicine #MedSky 🧪🧬🌐
🧵 1/
✍️ ¡Nuevo artículo! Issa Luna Pla, @jrncarlock.bsky.social y Harald_Waxecker muestran por qué las redes criminales deben investigarse como sistemas, no como casos aislados. Enfrentarlas exige análisis de relaciones y acciones contra actores centrales.
Léelo completo en: dplf.org/repensar-la-...
How “intelligent” is a slime mold? When it solves mazes, it might not be thinking:it’s obeying physics. Our new paper with
@jordiplam.bsky.social shows how it follows a least action principle,letting physics do the job arxiv.org/pdf/2511.08531
@drmichaellevin.bsky.social @docteur-drey.bsky.social
What if we could chart all cell types across the tree of life?
In @nature.com, @arnausebe.bsky.social and colls launch the Biodiversity Cell Atlas, a global effort to map eukaryotic cell diversity using single-cell & genomic data.
drive.google.com/file/d/1G4zZ... @crg.eu @ibe-barcelona.bsky.social
The Bak-Sneppen model: species in a circle, each with random fitness. Replace the weakest species (and its neighbors) with new random values. Cascading evolutionary avalanches emerge, showing self-organized criticality from simple rules.
Made with #python #numpy #matplotlib
New article in the Journal of Quantitative Criminology with Issa Luna-Pla and Harald Waxenecker: Prosecution of Complex Criminal Networks: A Multilevel ERGMs Approach to CICIG’s Judicial Cases. Open Access: doi.org/10.1007/s109...
What is the physical basis of death? Can we manipulate cellular rules to avoid it? What does death mean for a machine? Is immortality possible? What does it mean for language, thought, or information to die? My new book @princetonupress.bsky.social is coming soon. press.princeton.edu/books/hardco...
Come join us in Boston this summer!
It's the 20-year anniversary of one of my absolute favorite conferences — we'll be planning some exciting events/discussions to celebrate how far this field has come and where it might go next.
Watch this space: www.netsci2026.com
It took 8 months to write up this short piece
"Updating the Complex Systems Keyword Diagram Using Collective Feedback and Latest Literature Data"
arxiv.org/abs/2509.11997
In complex systems, linear tools fail against nonlinear phenomena. You can’t fight smoke with a sword, nor bite water with your teeth—because complexity dissolves brute force. It demands sensitivity, adaptability, and systemic understanding. #complexity
Postdoc job! I expect to have an opening at Johns Hopkins for a postdoctoral researcher working somewhere in the broad realms of physics, philosophy, and complexity. Apply at Academic Jobs Online:
academicjobsonline.org/ajo/jobs/30496
A very straight line on a loglog plot. So straight that even Aaron Clauset would call this a power-law
Super excited about our new paper on mobility that's out in Nature Human Behavior www.nature.com/articles/s41...
I love this paper for many reasons, but one is that we find beautiful 1/x power-law that spans 6 orders of magnitude hidden within the "ugly" distribution raw mobility data.
Very cool postdoc opportunity (at intersection of physics, philosophy, and complex systems) ⬇️
Why is universality such a central concept in complex systems? How does it connect Turing Machines and Spin Systems? In this new paper, Tomáš Gonda and @gemmadlc.bsky.social present an accessible account on how to identify and compare different universalities arxiv.org/pdf/2406.16607
Two relevant and classic Special Issues on Complexity:
(1) Science (Volume 284, Issue 5411, 1999): www.science.org/toc/science/...
(2) Nature Physics (Volume 8, No 1, 2012): www.nature.com/collections/...
What is emergence? This is one of the most central ingredients of complexity, and a challenging one to formalize. Here's a paper by @seanmcarroll.bsky.social & Achyth Parola that attempts to classify different forms of emergence. @manlius.bsky.social @sfiscience.bsky.social arxiv.org/pdf/2410.15468
Complexity science is multidisciplinary in structure, interdisciplinary in practice and transdisciplinary in purpose. #complexity