Sanity is a legal definition, not a psychological one. People often forget that even the mentally-damaged act with reason and logic. This rationality may not be

Sanity is a legal definition, not a psychological one. People often forget that even the mentally-damaged act with reason and logic. This rationality may not be accessible to a bystander, but is present regardless. I see the article as making a distinction without a difference. Kubrick was perfectly clear in his presentation of HAL's motives. There were a few points of interest, like the chess game, which I missed when I watched the film, but the 'theory' is how I viewed HAL's actions the whole time.