Yes, what a strange situation. I lie to prove that the machine can't tell that I'm lying and am branded a liar for revealing the truth. Maybe the machine isn't

Yes, what a strange situation. I lie to prove that the machine can't tell that I'm lying and am branded a liar for revealing the truth. Maybe the machine isn't meant to do anything, and it's the examiner judging whether you are lying based on how your react to its presence.