Consider a maze which is covered on top so it only has one entry point and one exit point. And envision that the cover is made of glass so you can see what's happening in the maze. Now consider what happens if one pumps tooth-paste, yes this was actually the thought, into the entry it will initially follow every path available equally. The following are a set of apparent principles that always seemed to make sense, and are now realized to be direct implications of the two statements above. Some of these statements are essentially the restatements of each other, and I have not yet found an ordering I'm completely comfortable with.
Structure influences behavior .
Structure provides the basis for feedback and as such the path of least resistance. Energy flowing through a system tends to organize it . The initial energy flow, and the associated feedback, follows the path of least resistance defined by the structure, and attempts to create a path of even lesser resistance. Behavior influences structure . People always, always, always do exactly what makes the most amount of sense to them .