One of those most intriguing underlying themes of this movie is dehumanization by technology. This is evident mostly through the way it portrays HAL-9000, a computer used in deep space expeditions to help monitor all the ships parts and gather data it "sees". Throughout the movie HAL-9000 shows more emotional depth than any of the human characters. The actions of HAL are a true enigma, and keeps you thinking after the movie is done. Did HAL truely have feelings? Are computers able to think on their own, or was it merely a malfunction? Will they ever find out what went wrong, or will the mistake happen again? Although these questions are claimed to be answered in "2010" (the weak sequel to 2001), it is almost certain Stanley Kubrick intended the viewers to think for themselves.