There has also been doubts cast on how much information is remembered. That implies that users are no longer burdened with investing a lot of time in learning short-hand symbols. They can start right away. Whenever they come across an object whose meaning is not immediately obvious they can stop and have it explained to them. Furthermore, they might change the object's representation throughout the movie to suit their needs.
Alternative representations let choose the users their own level of abstraction .
For example, when reading a book you have to use your imagination and create your own world, based on the text. Seeing the film version of this particular book restricts ones phantasy. Figure 3.3 illustrates this. Together with the concept of object libraries, this is a powerful and unique feature. By using libraries the need for storing the object information within the story file is eliminated.