Ted Nilson is one of an American sociologist, a thinker, and a pioneer of communication engineering. He is famous for creating the concepts of hypertext and hypermedia. He believes that a user interface should be so simple that a beginner in an emergency can understand it within 10 seconds. This tought is his motto. Nilson also works on Project Xanadu.This project was the first project for hypertext whose purpose was improvement of World Wide Web.
This website briefly explains about Ted Nelson and his projects.
In this video, Ted Nelson is talking about today's software and his own view of it.