There is a misconception about dialogues; many people see the end results - the transcripts, the footage, or whatever - and think that is the end. In other words, once dialogue is over, the end result must be the right way to see it. But is that correct? You and I could speak on the same subject 5 different times, and each exploration could be entirely different. It is like jazz. The chord progression is the topic, and the solos are the dialogue. The results are unlimited within a limited background.