Prime examples are the origin of life, the transition from unicellular to multicellular organisms, the emergence of eusociality or symbolic thought. A metasystem is formed by the integration of a number of initially independent components, such as molecules, cells, or individuals, and the emergence of a system steering or controlling their interactions. As such, the collective of components becomes a new, goal-directed individual, capable of acting in a coordinated way. This metasystem is more complex, more intelligent, and more flexible in its actions than the initial component systems.
The concept of metasystem transition was introduced by the cybernetician Valentin Turchin in his 1970 book "The Phenomenon of Science," and developed among others by Francis Heylighen in the Principia Cybernetica Project. The related notion of evolutionary transition was proposed by the biologists John Maynard Smith and Eörs Szathmáry, in their 1995 book The Major Transitions in Evolution. Another related idea, that systems ("operators") evolve to become more complex by successive closures encapsulating components in a larger whole, is proposed in "The operator theory", developed by Gerard Jagers op Akkerhuis.
Turchin has applied the concept of metasystem transition in the domain of computing, via the notion of metacompilation or supercompilation. A supercompiler is a compiler program that compiles its own code, thus increasing its own efficiency, producing a remarkable speedup in its execution.
- Control of Position = Motion: the animal or agent develops the ability to control its position in space
- Control of Motion = Irritability: the movement of the agent is no longer given, but a reaction to elementary sensations or stimuli
- Control of Irritability = Reflex: different elementary sensations and their resulting actions are integrated into a coordinated, but still rigid, reflex-like behavior
- Control of Reflex = Association: behavioral routines become flexible or adaptive, through the learning of new associations between experienced stimuli and actions
- Control of Association = Thought: new routines no longer need to be learned through experience; they can be developed by abstract, symbolic reasoning
- Control of Thought = Culture: symbols and concepts are no longer fixed entities; they adapt through a process of cultural evolution
- Valentin Turchin (1977): The Phenomenon of Science. A cybernetic approach to human evolution, (Columbia University Press, New York).
- Francis Heylighen (1995): "(Meta)systems as Constraints on Variation: a classification and natural history of metasystem transitions", World Futures: the Journal of General Evolution 45, p. 59-85.
- Francis Heylighen (2000): "Evolutionary Transitions: how do levels of complexity emerge?", Complexity 6 (1), p. 53-57
- John Maynard Smith & Eörs Szathmáry (1995): The Major Transitions in Evolution, (W.H. Freeman, Oxford)
- Richard Michod (1999): Darwinian Dynamics: Evolutionary Transitions in Fitness and Individuality (Princeton University Press).
- G.A.J.M Jagers op Akkerhuis (2010): "The operator hierarchy: a chain of closures linking matter, life and artificial intelligence".