Studying successful extreme propaganda cases in history, we can find some key factors. Here are a few important factors and suggestions on how to flexibly apply them to the present: 1. **Simple and clear message**: Extreme propaganda often relies on simple and easy-to-understand slogans or messages. This makes communication more effective because simple messages are easier to remember and spread. *Application suggestion*: In the current communication, make sure the message is concise and clear. Take advantage of the platform characteristics of social media to break down complex topics into small, easy-to-digest pieces. 2. **Emotional appeal**: Extreme propaganda often attracts attention and inspires action by stimulating emotions (such as fear, anger, hope). *Application suggestion*: Identify the emotional triggers of the target audience and use multimedia content such as images and videos to stimulate emotional resonance, thereby increasing the persuasiveness of the message. 3. **Repetition and continuity**: Repeatedly convey the same message to enhance its credibility and influence. Many successful propaganda in history have used this method. *Application suggestion*: Use the current multi-channel communication strategy, including email, SMS push and social media to regularly release content to ensure that the message takes root in the minds of the audience. 4. **Use media channels**: Master or influence the main communication channels to ensure that the message is widely spread. Historically, controlling channels such as print media or broadcasting has been very effective. *Application suggestions*: In contemporary times, master the algorithmic mechanisms of social media, understand the best publishing practices of the platform, and work with influencers to maximize the spread of information. 5. **Create enemy images**: Extreme propaganda often unites internally by defining an "enemy" and consolidates its legitimacy by discrediting opponents. *Application suggestions*: In the modern context, pay attention to the legal and moral bottom line. Focus on the propaganda of positive values rather than simply creating opposition to avoid legal and moral backlash. 6. **Superstition and authority**: Use science, data or the voice of experts to give information a superficial authority, even if these arguments are taken out of context. *Application suggestions*: When explaining complex issues, cite authoritative sources and data, but be sure to ensure the authenticity of the information to build long-term trust. 7. **Social and cultural background**: Understand and use the social and cultural background of the target audience so that the information is more easily accepted. *Application suggestions*: Conduct market research to understand the audience background and improve the affinity and acceptance of content through localized information processing. It is important to note that while these factors can enhance the effectiveness of propaganda, they can also raise ethical and legal issues. Therefore, communication must be honest and responsible to avoid misleading or causing unnecessary conflicts.