Dialogue concentrates meaning; conversation dilutes it. - Robert McKee

The Law of Diminishing Returns, true in life as well as in story, is this: The more often we experience something, the less effect it has. Emotional experience, in other words, cannot be repeated back-to-back with effect. […] The first time we experience an emotion or sensation it has full effect. If we try repeat this experience immediately, it has half or less than half of its full effect. If we go straight to the same emotion for the third time, it not only doesn’t have the original effect, it delivers the opposite effect

An image system is a strategy of motifs, a category of imagery embedded in the film that repeats in sight and sound from beginning to end with persistence and great variation, but with equally great subtlety, as a subliminal communication to increase the depth and complexity of aesthetic emotion.

How does anyone know from moment to moment what to say or do next until he senses the reaction to what he just did? He doesn't know. Life is always action/reaction. No monologues. No prepared speeches. An improvisation no matter how we mentally rehearse our big moment.