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Complexity Emergence SCIENCE Social network

Emergence and macro-level independency

Recently Philip Ball collaborator of Quanta Magazine in an article  entitled The New Math of How Large-Scale Order Emerges“, discussed some research advances around the question of how emergence emerge in complex systems? He focuses on the work of Fernando Rosas and six other researchers entitled “Software in the natural world: A computational approach to emergence in complex multi-level systems”, which presents  a mathematical framework based on computational mechanics to better understand the phenomenon of emergence.

According to the researchers, by organizing systems such as economic, urban or even biological systems into hierarchies of levels, it is possible to find in each of them properties that allow each level to operate independently of the others, just as software does in a computer, each software works independently the computation mechanism of the hardware circuits. This means that emergent phenomena are governed by macroscale rules that appear to be self-contained, regardless of what the components or entities of other hierarchies do.

In general, the approach of Rosas et al. (2024) characterizes the interdependence between micro and macro levels by combining principles of computational mechanics with fluid dynamics and dynamical systems theory, which are widely used in continuous systems. This contribution to bridging the gap between emergence and complex systems is guided by previous research by Barnett & Seth (2023), which proposes a system in which a dynamically macro level is conditional on its own history and independent of the history of the micros process. Both studies turn around systems whose macro levels have a degree of causal ‘self-containment’ with respect to their micro processes, which could be understood as a kind of emergence.

To access the Quanta Magazine article, use this link:

https://www.quantamagazine.org/the-new-math-of-how-large-scale-order-emerges-20240610

For the Rosas et al. (2024) paper:

https://arxiv.org/abs/2402.09090v2

And for the paper by Barnett & Seth (2023):

https://arxiv.org/pdf/2106.06511

Made in Adobe Firefly AI, prompt: Jorge Salgado.

References:

Barnett, L.  and Seth A. K. 2023. “Dynamical independence: discovering emergent macroscopic processes in complex dynamical systems,” Physical Review E, vol. 108, no. 1, p. 014304.

Rosas, F. E., Geiger, B. C., Luppi, A. I., Seth, A. K., Polani, D., Gastpar, M., & Mediano, P. A. M. (2024). Software in the natural world: A computational approach to hierarchical emergence. arXiv.

Categories
Cities Health Resilience SCIENCE Society Urban

MOOC – Healthy Urban Systems

We invite you to the Massive Open Online Course (MOOC) Healthy Urban Systems, designed specifically for professionals and enthusiasts in the field of urban health. This first part of the MOOC series (consisting of 3 MOOCs) will take you on a comprehensive 4-week journey, navigating through multidisciplinary frameworks and analytical observations critical to understanding the complexities of urban health.

You will learn to:

  • Address urban health through complex multidisciplinary approaches.
  • Use multidimensional and multiscale concepts, methods, and ecosystem frameworks.
  • Mobilize and support all players directly or indirectly involved in urban health.
  • Dedicated to all levels of disciplines linked to the city, health, the environment, social and human sciences, data sciences…

The MOOC is entirely in English, with possible subtitles in French and Chinese.

Materials: videos, glossary, quizzes, exercises, discussion forum.

Duration: 4 weeks – 1 session per week to be taken at your convenience.

Workload: 2 to 3 hours per week.

Accreditation (possible and not compulsory): 2 ECTS for PART I, issued by the University of Lausanne.

General coordination:

University of Lausanne – UNIL-EPFL Foundation for Continuing Education

Prof. Céline Rozenblat, Jeff van de Poel