“Limitation is vital. The first step toward a well-told story is to create a small, knowable world. Artists by nature crave freedom, so the principle that the structure/setting relationship restricts creative choices may stir the rebel in you. With a closer look, however, you’ll see that this relationship couldn’t be more positive. The constraint that setting imposes on story design doesn’t inhibit creativity; it inspires it.
The irony of setting versus story is this: The larger the world, the more diluted the knowledge of the writer, therefore the fewer creative choices and more clichéd the story. The smaller the world, the more complete the knowledge of the writer, therefore the greater his creative choices. Result: a fully original story and victory in the war on cliché.”
-Hollywood screenwriter mentor Robert McKee