Have you ever really thought objectively about this business of visual simulation? Sure, I know everyone has said to himself: "I want to create a scene that will give the pilot - or operator - all of the visual cues that he needs to do his job". But isn't that really subjective? Wouldn't a truly objective approach go something like this: "I want to create a scene that will bring the part of the universe that I'm interested in into eyeball range of the pilot"? Stop a minute and think about the difference. In the first case, we tend to consider the view as a collection of parts that are combined to help the pilot. In the second case, we are considering the view from what the pilot sees - a sort of "inside out" rather than "outside in".