How is Walter attitude toward life unrealistic?

Walter's attitude toward life is unrealistic because he harbors grand dreams of wealth and success that are disconnected from his current reality. He believes that a single, high-risk investment can solve all his problems, ignoring the hard work and persistence typically required to achieve such goals. His fixation on achieving the American Dream blinds him to the more pragmatic steps needed to improve his situation, leading to disillusionment. This idealism ultimately causes him to make impulsive decisions that jeopardize his family's stability.