j.carlock
@jrncarlock.bsky.social
đ€ 125
đ„ 67
đ 47
complexity science | english/spanish | web:
https://jrncarlock.github.io/
Genuary day 20: One (noisy) line Made with
#python
#numpy
#matplotlib
#genuary
#genuary20
#genuary2026
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28 days ago
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j.carlock
Hiroki Sayama
about 2 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
about 2 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
3 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
3 months ago
âïž ÂĄNuevo artĂculo! 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 anålisis de relaciones y acciones contra actores centrales. Léelo completo en:
dplf.org/repensar-la-...
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j.carlock
Ricard Solé
3 months ago
How âintelligentâ is a slime mold? When it solves mazes, it might not be thinking:itâs 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
4 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
4 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 CICIGâs Judicial Cases. Open Access:
doi.org/10.1007/s109...
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Prosecution of Complex Criminal Networks: A Multilevel ERGMs Approach to CICIGâs 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
4 months ago
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j.carlock
Ricard Solé
4 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
4 months ago
Come join us in Boston this summer! It's the 20-year anniversary of one of my absolute favorite conferences â 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
add a skeleton here at some point
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j.carlock
Hiroki Sayama
5 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 canât fight smoke with a sword, nor bite water with your teethâbecause complexity dissolves brute force. It demands sensitivity, adaptability, and systemic understanding.
#complexity
5 months ago
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Sean Carroll
5 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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5 months ago
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j.carlock
Sune Lehmann
5 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
5 months ago
Very cool postdoc opportunity (at intersection of physics, philosophy, and complex systems) âŹïž
add a skeleton here at some point
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j.carlock
Ricard Solé
6 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, TomĂĄĆĄ 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/...
6 months ago
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Ricard Solé
6 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
6 months ago
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j.carlock
Hiroki Sayama
7 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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Ricard Solé
7 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
7 months ago
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j.carlock
Simone Conradi
7 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/...
7 months ago
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j.carlock
Complexity Science Hub
7 months ago
đ Want to become part of a vibrant and international scientific community? Whether youâre 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
7 months ago
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UNAM
7 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 humanityâs quest to understand existence itself.
#Complexity
8 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
8 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...
8 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.
8 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
8 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
8 months ago
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j.carlock
Ricard Solé
about 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
8 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
8 months ago
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In complexity, context is everything. A systemâs 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
8 months ago
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Working on some complexity science illustrations. Canât keep my eyes off this one in the style of DalĂ.
9 months ago
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The "physics of complex systems" and "complexity in physical systems" are not the same thing. The later is a general scientific approach that can be applied to non-physical domains. The former refers to emergent behaviors within natural phenomena.
#ComplexityScience
#SystemsThinking
9 months ago
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A complex network of complex systems ideas.
#complexity
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9 months ago
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The notion of complexity is filled with nuance and richness. Data from "Complexity: 5 Questions" (2008) by
@cgershen.bsky.social
#complexity
9 months ago
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Global minds. Local hands. Finite time.
9 months ago
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j.carlock
Ricard Solé
9 months ago
Two types of brains have emerged in nature: solid (ours) and liquid (ant colonies, immune system). What can be computed by liquid brains? How complex are they? Check our paper on the statistical physics of liquid brains
@jordipinero.bsky.social
royalsocietypublishing.org/doi/full/10....
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Nueva publicaciĂłn! En nuestro artĂculo "Empresas fantasma: piezas clave en la corrupciĂłn" presentamos una perspectiva del fenĂłmeno de las empresas fantasma en las contrataciones pĂșblicas de MĂ©xico (2002-2022) desde el anĂĄlisis de redes.
quintoelab.org/fantasmas-de...
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Empresas fantasma: piezas clave en la corrupciĂłn
Estas organizaciones actĂșan en red, operan como autĂ©nticos cĂĄrteles econĂłmicos y reciben del gobierno grandes sumas de dinero sin entregar a cambio los servicios comprometidos.
https://quintoelab.org/fantasmas-del-erario/empresas-fantasma-corrupcion-unam/
9 months ago
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j.carlock
Carlos Gershenson
10 months ago
đ§ đ» Conversatorio | MĂ©xico Tramas invisibles: El poder de las redes sociotecnolĂłgicas Con RaĂșl Trejo Delarbre, Carlos Gershenson y Marcela Amaro. đ Domingo 11 de mayo | đ 1:30 pm đ Sala Carlos ChĂĄvez, Centro Cultural Universitario đ Entrada libre | Cupo limitado
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j.carlock
Haroldo V. Ribeiro
10 months ago
Our latest paper, "Structural roles and gender disparities in corruption networks," is out in Scientific Reports. We find that females comprise just 10%/20% of corruption agents in Brazil/Spain, yet network properties of these criminals show no significant gender-specific bias -
rdcu.be/ei2l0
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j.carlock
Complexity Digest
10 months ago
Escalation dynamics and the severity of wars via
@aaronclauset.bsky.social
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Escalation dynamics and the severity of wars
Aaron Clauset, Barbara F. Walter, Lars-Erik Cederman, Kristian Skrede Gleditsch Although very large wars remain an enduring threat in global politics, we lack a clear understanding of how some wars become large and costly, while most do not. There are three possibilities: large conflicts start with and maintain intense fighting, they persist over a long duration, or they escalate in intensity over time. Using detailed within-conflict data on civil and interstate wars 1946--2008, we show that escalation dynamics -- variations in fighting intensity within an armed conflict -- play a fundamental role in producing large conflicts and are a generic feature of both civil and interstate wars. However, civil wars tend to deescalate when they become very large, limiting their overall severity, while interstate wars exhibit a persistent risk of continual escalation. A non-parametric model demonstrates that this distinction in escalation dynamics can explain the differences in the historical sizes of civil vs. interstate wars, and explain Richardson's Law governing the frequency and severity of interstate conflicts over the past 200 years. Escalation dynamics also drive enormous uncertainty in forecasting the eventual sizes of both hypothetical and ongoing civil wars, indicating a need to better understand the causes of escalation and deescalation within conflicts. The close relationship between the size, and hence the cost, of an armed conflict and its potential for escalation has broad implications for theories of conflict onset or termination and for risk assessment in international relations. Read the full article at: arxiv.org
https://sco.lt/8fIOIa
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j.carlock
Complex Networks Winter Workshop (CNWW)
11 months ago
As winter ends, we dream of the next one. Information is now live for CNWW 2025 (Dec. 13-20) in Québec City! Come learn, teach, and play with networks and network science in beautiful QC More info to come but logistics and application form can be found here:
vermontcomplexsystems.org/events/cnww/
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Complex Networks Winter Workshop
https://vermontcomplexsystems.org/events/cnww/
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