Above is another fascinating historical AAC video, cribbed from communication pioneer John Eulenberg's Vocaman YouTube channel.
The story is narrated by Dick Boydell, a British computer scientist who has Cerebral Palsy. He talks of his past, and of the joy an adapted train-set brought him as a child. He communicates in the main using a Possum type-writer using his feet. In his trip to the Artificial Language Lab at Michigan State University, he gets a taste of the future to come during a range of meetings, but also of the frustrations of 1982 technology.