| As a graduate student in philosophy in the late1950s 
                  and early 1960s, Ted Nelson had two critical intellectual encounters 
                  that led him to become one of the most influential figures in 
                  computing. One was with Vannevar Bush's 
                  article As We May Think, which convinced him that emerging 
                  information technologies could extend the power of human memory. 
                  The second was with Samuel Taylor Coleridge's poem Xanadu, 
                  "a magic place of literary memory," in Nelson's words, that 
                  provided him with the image of a vast storehouse of memories, 
                  and which served as the inspiration for his life's work. From 
                  these influences, Nelson began his quest to build creative tools 
                  that would transform the way we read and write, and in 1963 
                  he coined the words "hypertext" and "hypermedia" to describe 
                  the new paradigms that these tools would make possible.   Nelson was particularly concerned with 
                  the complex nature of the creative impulse, and he saw the computer 
                  as the tool that would make explicit the interdependence of 
                  ideas, drawing out connections between literature, art, music 
                  and science, since, as he put it, everything is "deeply intertwingled." 
                    Nelson's critical breakthrough was to call 
                  for a system of non-sequential writing that would allow the 
                  reader to aggregate meaning in snippets, in the order of his 
                  or her choosing, rather than according to a pre-established 
                  structure fixed by the author.  |