ignoring simpler and much more common organisms. This passive model emphasizes that the overwhelming majority of species are microscopic prokaryotes, which comprise about half the world's biomass and constitute the vast majority of Earth's biodiversity. Therefore, simple life remains dominant on Earth, and complex life appears more diverse only because of sampling bias. If there is a lack of an overall trend towards complexity in biology, this would not preclude the existence of forces driving systems towards complexity in a subset of cases. These minor trends would be balanced by other evolutionary pressures that drive systems towards less complex states. See also Artificial life Chaos theory Cognitive science Command and Control Research Program Complex system Computational sociology Dual-phase evolution Econophysics Enterprise systems engineering Generative sciences Mean-field game theory Open system (systems theory) Santa Fe Institute Simulated reality Sociology and complexity science Super wicked problem Swarm Development Group Universal Darwinism References Literature ; commissioned as a report by the UK government's Foresight Programme. Dooley, K., Complexity in Social Science glossary a research training project of the European Commission. , M.C. (online). Looking to systems theory for a reductive explanation of phenomenal experience and evolutionary foundations for higher order thought Retrieved 15 January 2008. Hobbs, George & Scheepers, Rens (2010),"Agility in Information Systems: Enabling Capabilities for the IT Function," Pacific Asia Journal of the Association for Information Systems: Vol. 2: Iss. 4, Article 2. Link External links Complex Adaptive Systems Group loosely coupled group of scientists and software engineers interested in complex adaptive systems DNA Wales Research Group Current Research in Organisational change CAS/CES related news and free research data. Also linked to the Business Doctor & BBC documentary series A description of complex adaptive systems on the Principia Cybernetica Web. Quick reference single-page description of the 'world' of complexity and related ideas hosted by the Center for the Study of Complex Systems at the University of Michigan. Complex systems research network The Open Agent-Based Modeling Consortium TEDxRotterdam - Igor Nikolic - Complex adaptive systems, and The emergence of universal consciousness: Brendan Hughes at TEDxPretoria . Talks discussing various practical examples of complex adaptive systems, including Wikipedia, star galaxies, genetic mutation, and other examples Cybernetics Systems science Complex systems theory