To the extent that they are quantified, theories in the social sciences often are modeled on theories in the physical sciences. For example, statistical physics methods sometimes give inspiration to economics. Yet this is not an obviously productive direction: while the velocities of 1024 gas molecules may be adequately described as independent, normally distributed variables, there is much less reason to believe an economy of 104 agents are distributed this way. Rather, the hierarchical structure of social and economic systems suggests the usefulness of a fractal description. We shall consider a few examples. Others abound, but in some instances we feel these should be given some time to mature before we describe them. Of course, contributions from experts are welcome.
| EEG Patterns | |
| Finance and Risk | Prisoner's Dilemma |
| Sumerian History | |
| Visual Perception | |
| Wars |