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More is different by PW Anderson

Why Complexity is Different by Yaneer Bar-Yam Complex systems scientist studying social and economic systems. From physicist's point of view and the perspective of renormalization group

Hierarchical structure of science, nature and everything

Herbert Simon

Alternative Views of Complexity
The Architecture of Complexity: Hierarchic Systems


Research on complexity

D. Helbing: Next civilization

Revealed – the capitalist network that runs the world


  • overview of Computational Complexity Theory