(Photograph) - This single frame captures the essential plot that a normal four-year-old child can understand. Snow White does not know that the old lady is really her wicked stepmother in disguise, and that the lovely looking apple is really a poisonous one. The normal four-year-old's mindreading skills allow them to keep track of who knows what, and what each person's real intentions might be. Most children with autism fail to understand what each person might know or think, or how their intentions might be deceptive. They suffer from "mindblindness''.