Sometimes, I think that the most alien thing to mankind is mankind itself. The real aliens live next door or across the border or somewhere overseas. Each man and woman defines the world about them, creating a set of those things which they consider "normal" and "good" and "evil" and "sympathetic" and "likable," and these are damned indomitable walls. They are high and thick, and it is the task of the writer to penetrate or scale them. To break in. To shatter preconceptions. To force people to rethink cherished opinions and prejudices.