Mark Easdown writes about complexity. In the mid 1980s, a school of thought emerged around “Complexity” and “Complex Adaptive Systems” with the formation of the Sante Fe Institute, formed in part by former members of Los Alamos National Laboratory. The institute drew from multi-disciplinary domains and insights of : economics, neural networks, physics, artificial intelligence, chaos theory, cybernetics, biology, ecology and archaeology. Theories on Complexity and Complex Adaptive systems sought to develop common frameworks and understandings of physical and social systems that was an alternate to more linear and reductionist modes of thinking.