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

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

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

Looking back to data, we can see if the consequences are plausible; looking forward to theory, we can see if general principles are suggested.

From the point of view of physics, it is a miracle that [seven million New Yorkers are fed each day] without any control mechanism other than sheer capitalism.

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

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