

Usually, these sideways figure 8’s are seen as a type of S curve in biology, where a population starts out small, using few resources, and then grows steadily until it reaches a kind of carrying capacity and levels out. This is where classic sustainability is seen, where we try to stay at that leveled out portion of the curve without much variation for as long as possible. Holling’s model disregards this notion of keeping a society’s rate of growth steady, and acknowledges that change and even death of certain societies and ideas is inevitable. This is observed on the right side of the sideways figure 8, where the cycle goes down again. It’s a fluid model though, so he is arguing that even with these deaths, the system as a whole does not die; it’s reborn again eventually.