You speak into it and everything is recorded, voice, tone, intonation, everything. You turn a little wheel, and forth it comes, and can be repeated ten thousand times. Only fancy what this suggests.
I think it's insulting to an audience to make them sit and watch a film and then give them a message in one sentence.
If we ask a vague question, such as, 'What is poetry?' we expect a vague answer, such as, 'Poetry is the music of words,' or 'Poetry is the linguistic correction of disorder.'