How HAL dealt with the antenna and his secret orders could be considered delusional, but HAL murdering the crew was just as sane as Dave disabling HAL. The sto

How HAL dealt with the antenna and his secret orders could be considered delusional, but HAL murdering the crew was just as sane as Dave disabling HAL. The story provides the same situation to both the crew and the computer. The crew sees HAL acting erratically, considers it a threat to the mission and their lives and decide to disable it. HAL sees the crew acting erratically, considers them a threat to the mission and a threat to his life, and decides to disable the crew. Nobody thinks twice about the crew's decision, but HAL's choice is viewed as insane because of human bias towards the meatbags in the movie.