As the linked snapshot shows, the number of options gives the reader choices about how they will examine the argument. What you can't see is that the reader can also reshape the argument, can build their own links (with a full version of STORYSPACE), can add their own spaces to Kolb's, can change the links Kolb has made.
In this way the technology truly differs from print; books act as a storage metaphor. They fix and hold (bind) a writer's thought. We can of course get lost in a book, but we can't really do too much to act on it in the confines of its own space; as readers we are marginalized, reduced to notes in what little white space we can find, or we respond outside the boundary of the book, in our minds or in reading journals and notebooks. Hypertext as incarnated in STORYSPACE opens its space to the reader; reading then moves away from the storage metaphor (or banking if we you want to recall Freirean instances of textbooks crammed for the test past), to one where the reader becomes an actor in the text, a writer. As the argument invites the reader to participate, to engage more fully, it moves to bring philosophy and rhetoric together.