[John Siracusa][siracusa] on app management in mac os x lion.
The jump in complexity from the Dock to the Finder, I think, needs less explanation. As a general rule, novice users just don't understand the file system. They don't understand the hierarchy of machines, devices, and volumes; they don't grasp the concept of the current working directory; they don't know how to identify a file or folder's position within the hierarchy. Fear of the file system practically defines novice users; it is usually the last and biggest hurdle in the journey from timid experimentation to basic technical competence.