Ender's Game, written by Orson Scott Card, is a science fiction novel that delves into the concept of quantum reality through the eyes of a young prodigy named Ender Wiggin. Set in a future where humanity is at war with an alien species, the story follows Ender as he is trained in a battle school to become a military genius. As Ender faces increasingly complex simulations and challenges, he begins to question the nature of reality and the consequences of his actions.