## noun

effective complexity (EC) is the length of a concise description of a set of regularities (found by mutual information (MI) in a system; EC assists in the differentiation of the terms complex, simple, complicated, chaos, and stochastic.

DSRP and VMCL are simple rules that underlie the complex adaptive systems (CAS) of thinking and organizations, respectively.

It turns out that while it is true that:

- simple systems are simple,
- complicated systems are complicated,
- complex systems are complex,
- chaotic systems are chaotic, and
- stochastic (random) systems are stochastic (random)

It is also true that there is a deep and surprising * relationship* between

*adaptive systems (CAS) (such as complex cognition or "systems thinking" and organizations) and*

**complex****rules. This means, somewhat paradoxically, that:**

*simple*- complex systems are also simple

Any determination of "complexity" is DSRP-intersubjective. However, the following images provide a good guide for how these terms are distinguished.

Explained another way:

Another way of illustrating the above is as follows:

Or in map form:

See also:

- What is Complexity? by Murray Gell-Mann
- Effective Complexity by Murray Gell-Mann