In Friedman’s work there are some characteristic topics that emanate from his analyses and preferences and his non conventional attitude. These characteristics can be observed in nearly all his work, one way or another.
The heart of his fascination lies in his awareness that every moment in time is unique and that there is no tellling what the next may bring. This notion works equally for decisions that people may make and shapes that may occur, if not subjected to imposed hindrances.
He has always strived to systematically eliminate these obstacles by finding principles and methods that allow for unpredictable results. His work revolves around showing examples of possible results, underlining the notion the fact that there is no knowing what the outcome will be.