Sociology and Economics as Branches of Physics

Mark Buchanan, The Social Atom: Why the Rich Get Richer, Cheaters Get Caught, and Your Neighbor Usually Looks Like You, New York: Bloomsbury, 2007. Buchanan is an American physicist and former editor of Nature.  In his latest book, he argues that the collective behavior of human beings can be understood …

Another Large-Scale Brain Simulation

On the heels of the Blue Brain project, here’s another effort to simulate neural systems on a very large scale, with the provocative title “Cognitive Computing via Synaptronics and Supercomputing.” This link is to the PI’s blog: www.modha.org From DARPA’s announcement: “The end goal: ubiquitously deployed computers imbued with a …

A Review of the Hypercomputation Literature

A. Syropoulos, Hypercomputation: Computing Beyond the Church-Turing Barrier. New York, Springer, 2008.There is now a wide range of proposals for physical (more or less) systems that purportedly compute functions that are not computable by Turing machines.  This new book reviews many proposals from the hypercomputation literature, such as infinite time …

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