"'The Diving Bell and the Butterfly' reminded me of a computer
program I heard about a few years ago. The main character of the
movie (which is based on real story of Elle Magazine owner,
Jean-Dominique Bauby) is paralyzed in such a way that he can
communicate with the external world only by blinking his left eye.
Despite that he managed to write a book using a sophisticated text
entry method and enormous patience. If he had Dasher he would be
able to do the same thing way easier and faster..."