What are three ways the operation changes Charlie’s life?

1. Increased intelligence and cognitive abilities: After the operation, Charlie's intelligence dramatically increases, allowing him to understand complex concepts and engage in stimulating intellectual activities. This change in his cognitive abilities alters his way of thinking and perceiving the world around him.

2. Social relationships: The operation also impacts Charlie's social relationships. As he becomes more intelligent, he struggles to relate to his former friends and feels alienated from those he once considered close to him. Additionally, his newfound intelligence causes others to perceive him differently, leading to a shift in how he interacts with those around him.

3. Emotional development: Charlie's emotional development is also affected by the operation. As he gains greater intellectual capabilities, he must navigate the complexities of his own emotions and relationships with others. This newfound emotional awareness challenges him to confront his past experiences and grapple with his sense of self in profound ways.