Category Archives: Social Physics

The Dangermond Lecture

TweetToday/this date I give/gave the Dangermond Lecture at University of California Santa Barbara on Explaining the Dynamics of City Size. Here is the PDF and there is a post on the CASA web site with more links to related work, … Continue reading

Posted in Allometry, Animations, Complex Systems, Fractal Geometry, Scaling, Social Physics | Leave a comment

Urban Transformations and Urban Structure

TweetCheck out Luc D’Acci’s Blog. He has some very interesting projects on mega cities and the internal structure of cities which blends lots of ideas from economics and complexity theory with spatial structures and patterns. Some papers are downloadable

Posted in Complex Systems, Morphology, Social Physics, Uncategorized, Urban Dynamics | 69 Comments

More Complexity: What von Neumann said to Shannon

TweetMartin Austwick has an interesting piece on defining complexity which is what I am trying to do in my Spatial Complexity course. If you click on the link to the left or here, there is a small comment about entropy … Continue reading

Posted in Complex Systems, Entropy, Scaling, Social Physics | 3 Comments

Spatial Complexity

Tweet Started my new lecture course on Spatial Complexity at Arizona State University. It’s killing me doing relatively new stuff day after day. Lectures are posted after given: Seven so far, the last on Wednesday (2/11) (at

Posted in Complex Systems, Evolution, Scaling, Social Physics | Leave a comment

Ranks of Flows: Network Scaling

Tweet The TfL Oyster Card Tube and Train flow volumes over 24 hrs at 666 (don’t worry about the number) hubs reveal classic diurnal peaks but the profiles are far from power laws. If anything, they are lognormal. Watch the Vimeo … Continue reading

Posted in Flows, Fluxes, Networks, Social Physics, Transport, Uncategorized | 1 Comment