In calling society an ecological system we are not merely using an analogy; society is an example of the general concept of an "ecosystem" that is, a… - Kenneth E. Boulding

If there is one idea that has dominated the history of the United States, it is the idea of progress. Yet analyses of this idea are surprisingly rare. Furthermore, in spite of having been founded by a rather small revolution, the dominant dynamic of the United States has been evolutionary, through social mutation (invention), production, and selection. In this paper, therefore, I propose to look at the larger question of the nature of evolutionary change, and the conditions under which change can be identified as progress.

Economists and technologists bring the "bits", but it requires the social scientists and humanists to bring the "wits."

[In science any model depends on a pre-chosen taxonomy] a set of classifications into which we divide the enormous complexity of the real world... Land, labor, and capital are extremely heterogeneous aggregates, not much better than earth, air, fire, and water.