Hypertext is a unique medium that explores the world of discontinuity. Its non-linear, open-ended format has opened the doors to unconventional writing. Instead of a steady progression of ideas, the writer can jump from one idea to the other. It is almost like footnoting, but the footnotes can go on and on, and the reader may not return to the path he started on. Written forms of this have been experimental, as in Nicholson Baker's The Mezzanine, but they are somewhat limited in the medium they are using. In the end it has to be made into a hard copy. The inverse of this is almost a defining aspect of hypertext, its irreproducibility. Because there are so many paths to take, different colored mediums, images, and numerous links, it is virtually impossible to recreate hypertext works on any hard copy with any sense of coherence.