There are several ways to subtly integrate extreme viewpoints into popular literature without making them obvious: 1. **Character development**: Create complex, multifaceted characters to represent extreme viewpoints rather than stereotypes. By having characters grow in the story or interact with other characters, you can make it more natural for readers to consider these viewpoints. 2. **Plot development**: Use an engaging plot development to make extreme viewpoints part of the story. For example, show the plausibility or challenge of these viewpoints through conflict, choices, or crisis situations. 3. **Metaphors and symbols**: Use metaphors or symbols to express extreme viewpoints in an abstract way, making them seem like a natural part of the story rather than a direct preaching. 4. **Multiple perspectives**: Use multiple perspectives to present various viewpoints through the perspectives of different characters. In the contrast, readers can make their own judgments without feeling forced to make a single viewpoint. 5. **Dialogue and debate**: Have characters engage in real dialogue or debate with each other, presenting their own viewpoints and rebuttals, and presenting complex issues in a non-preachy way. 6. **Background Setting**: Incorporate extreme viewpoints into the background setting of the story so that they become part of the world view or culture, allowing readers to naturally come into contact with these viewpoints while understanding the background. 7. **Emotional Resonance**: Suggest extreme viewpoints by stimulating readers' emotional responses, such as by describing the emotional dilemmas or life journeys of the characters, leading readers to empathize with them. In this way, readers are naturally exposed to these viewpoints while being immersed in the story, without feeling forced to accept specific ideas.