Complexity

Complexity is a term that describes the behavior of a system or model whose components interact in multiple ways and follow local rules, meaning there is no reasonable higher instruction to define the various possible interactions.

The study of these complex systems is known as Complexity science, and it is a broad field that includes systems theory, network theory, and non-linear dynamics. Complexity is often used to characterize something with many parts where those parts interact with each other in multiple ways, culminating in a higher order of emergence greater than the sum of its parts.

Characteristics of Complexity

Complexity has certain characteristics that differentiate it from other concepts. These include:

• Emergence - Larger patterns arise through interactions among smaller or simpler entities that themselves do not exhibit such properties.
• Self-organization - Systems that spontaneously order themselves into a pattern.
• Adaptation - The ability of a system to adjust its internal structure in response to changes in its environment.
• Non-linearity - The output is not proportional to the input.
• Interconnectedness - The various parts of a system interact with and rely on each other.

Complexity in Different Fields

Complexity is a concept that is used in various fields of study, including:

• Physics - In physics, complexity is related to the thermodynamics of systems.
• Biology - In biology, complexity is associated with the study of life and biological systems.
• Sociology - In sociology, complexity is used to understand social systems and human behavior.
• Economics - In economics, complexity is used to model economic systems and markets.

See Also

• Complexity Science
• Systems Theory
• Network Theory
• Non-linear Dynamics

References

Complexity Resources
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