Don't want to close my eye
Don't want you and Frank to make me sleep
Cause I'm lip-reading you, Dave
And I don't wanna miss a thing
That reminds me of the bit in 2010 where the Russian and American crew are all gathered in the Discovery's pod bay and discussing HAL's original malfunction. At one point, Chandra tells HAL that they want to have a private conversation, and HAL immediately complies. Would this have worked in 2001, instead of the elaborate precautions Bowman and Poole took so that HAL couldn't hear them?