nonlinear interactions almost always make the behavior of the aggregate more complicated than would be predicted by summing or averaging.

The recycling of resource by the aggregate behavior of a diverse array of agents is much more than the sum of the individual actions.

The measure of performance of any given agent is the amount of money it accumulates through its actions.

Particular individuals do not recur, but their building blocks do.

With theory, we can separate fundamental characteristics from fascinating idiosyncrasies and incidental features. Theory supplies landmarks and guideposts, and we begin to know what to observe and where to act.

This use of building blocks to generate internal models is a pervasive feature of complex adaptive systems.

Unwrapping occurs when the "solution" is explicitly built into the program from the start.