Complementarity (systems thinking)

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In systems theory, any description of a system reflects the point of view of a particular observer. The principle of complementarity states that, for any reasonably complex system, the views of any two observers will be complementary – it will be impossible to derive all the observations of one of the observers from the other. The principle applies whenever we have partial descriptions of the world from our observers, and may disappear if we ask the observers to make increasingly detailed observations.

[edit] See also

• Complementarity