j.carlock
@jrncarlock.bsky.social
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complexity science | english/spanish | web:
https://jrncarlock.github.io/
Presentación de nuestro trabajo en “Fantasmas del Erario” sobre empresas fachada en las compras federales de México (2002-2022) @quintoelab y ganador del premio internacional de periodismo Sigma 2026. Seminario del ComplexityLab del @C3UNAM YouTube:
m.youtube.com/watch?v=RIqL...
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Redes, Crimen y Corrupción
YouTube video by Centro de Ciencias de la Complejidad
https://m.youtube.com/watch?v=RIqLX5jQE00&pp=iggCQAE%3D&ra=m
17 days ago
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j.carlock
Complexity Cat 🐱
21 days ago
Many physicists from the most prestigious institutions, whose papers are the most cited, do the same with biology. As a result, we have a flood of grants going to theories based on the erroneous premise that living beings "become more complex", or that life is "optimizing something," among others.
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j.carlock
Manlio De Domenico
26 days ago
Do you have strong opinions about the foundational concepts of Complex Systems and Network Science? Help us map the intellectual landscape of the field:
manliodedomenico.com/complexity_m...
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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
2 months ago
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j.carlock
Elise Cutts
2 months ago
What is your favorite thing anyone has done with the Ising model?
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Response to reviewer 2
#academiclife
3 months ago
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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...
3 months ago
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j.carlock
Tiago Peixoto
3 months ago
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...
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j.carlock
Tiago Peixoto
4 months ago
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j.carlock
Manlio De Domenico
4 months ago
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...
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Genuary day 20: One (noisy) line Made with
#python
#numpy
#matplotlib
#genuary
#genuary20
#genuary2026
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5 months ago
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j.carlock
Hiroki Sayama
6 months ago
A long-overdue interactive version finally done (Huge thanks to Google Gemini) Complex Systems Topic Network: Interactive Visualization
bingdev.binghamton.edu/sayama/compl...
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j.carlock
PessoaBrain
6 months ago
*The architecture of living systems* Ambitious treatment of the physics of living systems Some quibbles but impressive!
iopscience.iop.org/article/10.1...
#complexsystems
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j.carlock
Manlio De Domenico
7 months ago
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
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j.carlock
Due Process of Law Foundation
7 months ago
✍️ ¡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-...
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j.carlock
Ricard Solé
7 months ago
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
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j.carlock
Ricard Solé
8 months ago
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
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j.carlock
Simone Conradi
8 months ago
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
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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...
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Prosecution of Complex Criminal Networks: A Multilevel ERGMs Approach to CICIG’s Judicial Cases - Journal of Quantitative Criminology
Prosecutors are essential in combating organized crime, making key decisions about prosecution, target selection, and structuring imputation strategies. Despite their importance, the configuration of ...
https://doi.org/10.1007/s10940-025-09638-2
8 months ago
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j.carlock
Ricard Solé
8 months ago
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...
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j.carlock
Brennan Klein
8 months ago
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
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Hiroki Sayama
9 months ago
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
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Updating the Complex Systems Keyword Diagram Using Collective Feedback and Latest Literature Data
The complex systems keyword diagram generated by the author in 2010 has been used widely in a variety of educational and outreach purposes, but it definitely needs a major update and reorganization. T...
https://arxiv.org/abs/2509.11997
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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
9 months ago
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j.carlock
Sean Carroll
9 months ago
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
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Johns Hopkins University, Physics and Astronomy
Job #AJO30496, Postdoctoral Fellow in Foundations of Physics, Complexity, and Emergence, Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland, US
https://academicjobsonline.org/ajo/jobs/30496
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9 months ago
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j.carlock
Sune Lehmann
9 months ago
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.
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j.carlock
Melanie Mitchell
9 months ago
Very cool postdoc opportunity (at intersection of physics, philosophy, and complex systems) ⬇️
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j.carlock
Ricard Solé
9 months ago
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
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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/...
9 months ago
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j.carlock
Ricard Solé
10 months ago
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
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Complexity science is multidisciplinary in structure, interdisciplinary in practice and transdisciplinary in purpose.
#complexity
10 months ago
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j.carlock
Hiroki Sayama
11 months ago
I finally had time to update PyCX to ver. 1.2! Many new models and bug fixes. Enjoy!!
github.com/hsayama/PyCX
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GitHub - hsayama/PyCX: PyCX is a Python-based sample code repository for complex systems research and education.
PyCX is a Python-based sample code repository for complex systems research and education. - hsayama/PyCX
https://github.com/hsayama/PyCX
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j.carlock
Ricard Solé
11 months ago
What is complexity? Complex Systems made of many interacting units display "emergence", i.e. global properties that cannot be reduced to the properties of the units. A new idea? WM Wheeler was one of the advocates of emergence, back in 1927
@sfiscience.bsky.social
books.google.es/books/about/...
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Models of the mind.
#ComplexityThinking
11 months ago
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j.carlock
Simone Conradi
11 months ago
Julia set using Lagrangian Descriptor Made with
#python
#numpy
#matplotlib
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[Update] Complexity ideas bipartite network. Data from the book "Complexity: 5 Questions" (2008) by Carlos Gershenson
@cgershen.bsky.social
The data and a high resolution figure are available here:
github.com/jrncarlock/r...
The book is available here:
www.researchgate.net/publication/...
11 months ago
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j.carlock
Complexity Science Hub
11 months ago
🌟 Want to become part of a vibrant and international scientific community? Whether you’re just starting your career or bring years of experience, the Complexity Science Hub offers many ways to grow scientifically and collaborate across disciplines.
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Complexity, as a inherent quality of reality (interconnectedness), is a reminder that nature and knowledge go beyond our disciplinary labels. Science works according to disciplines, but reality just doesn't care (paraphrasing Feynman).
#complexity
#epistemology
11 months ago
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UNAM
11 months ago
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The origin of the universe, life, and consciousness are fundamental mysteries at the heart of human inquiry. While science has made progress, there is still no universal consensus. These remain frontiers of knowledge, deeply tied to humanity’s quest to understand existence itself.
#Complexity
11 months ago
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Complexity is scale-dependent. There is no single universally appropriate theoretical framework that applies across all scales. Different levels of organization require different modeling frameworks that may help us to capture and understand their dynamics and behavior.
#Complexity
#SystemsThinking
11 months ago
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I just discovered that my most cited article on "corruption and complexity" has been heavily plagiarized (figures included) and published in an obscure and apocryphal journal in India, without giving any proper credit or reference to the original work:
link.springer.com/article/10.1...
12 months ago
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Humanity is the first species to glimpse its place in the cosmos, yet it remains bound by self-destructive desires and systems of corrupt power. This is not a failure of intellect, but of empathy and ethical will.
12 months ago
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Conflict and violence have been a recurring feature of human societies: since the dawn of recorded history (~5000 years) humans have been at war over 90% of the time (Durant).
#conflict
#war
12 months ago
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In complex systems, boundaries matter. Cells have a membrane, countries a border and the planet its atmosphere. But boundaries regulate, they never isolate. No truly functioning system exists in complete isolation.
#Complexity
#SystemsThinking
12 months ago
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j.carlock
Ricard Solé
over 1 year ago
Is cognition a universal feature of the living world? How can we define it? Is a nervous system needed? If so, why? If not, why not? Check this fascinating
@royalsocietypublishing.org
Theme Issue led by
@drmichaellevin.bsky.social
& co. on Basal Cognition
royalsocietypublishing.org/doi/pdf/10.1...
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j.carlock
Ricard Solé
12 months ago
Can we build synthetic collective intelligence by engineering microorganisms? Can bacteria behave like ants and solve problems using emergent dynamics? Check our paper on how this could be done using Synthetic Biology and maths
www.cs.unibo.it/babaoglu/cou...
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Models are epistemological tools grounded in ontological assumptions. They do not aim to replicate reality in full, but to simplify and abstract its essential components in order to explore emergence. "All models are wrong, but some are useful." - George Box
#ComplexityScience
#SystemsThinking
about 1 year ago
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In complexity, context is everything. A system’s behavior and how we describe it depend on scale, perspective, and purpose. Ignoring context leads to potentially flawed conclusions by mistaking the simple for the complex.
#ComplexityScience
#SystemsThinking
about 1 year ago
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