Lecture Notes: Persuasion and Logic in Communication
Key Themes:
Persuasion Techniques
Storytelling and Relevance
Logic and Inference in Arguments
Persuasion Techniques:
Persuasion by Preda-bility: Mentions the concept of a speaker using persuasion not by direct instruction but by setting a scene or creating a situation where the audience is led to a conclusion without explicit direction.
Advertising Example: Sprite:
The speaker uses the example of a Sprite commercial to illustrate persuasion through suggestion rather than direct instruction.
Despite being in a commercial, the speaker emphasizes not telling people to "drink Sprite," highlighting an indirect persuasion technique.
Even when given situational prompts (e.g., eating tacos, holding a cold Sprite), the speaker avoids direct persuasion, using humor and reverse psychology.
Question of Choice: Ends with a rhetorical question to the audience, asking "Do you want a Sprite?" suggesting choice over persuasion.
Storytelling and Relevance:
Narrative Example: Personal Story
Story about a sorority friend, Tracy Marcinko, who got a perm and entered a wet t-shirt contest.
The story seems irrelevant but ties into a larger argument about hair care and logic.
Objection is raised about relevance during storytelling, indicating a need for tying back to the main point.
Logic and Inference in Arguments:
Example of Legal Argumentation:
Discusses the importance of logical rules in building a case, such as the rule about not wetting hair post-perm.
Uses logical deduction: If Tracy's curls were ruined by water, then wet hair after perm contradicts the maintenance rule.
Deduces timing of events based on hair condition to infer witness credibility.
Example shows how logical inference can refute a witness's testimony by linking facts and expected behaviors.
Conclusion:
Personal and Emotional Bias:
Reference to personal conflict, such as marrying someone of similar age to one's child, and its impact on credibility and actions.
The conclusion reveals a confession by Chutney, who admits to shooting her father, further emphasizing how storytelling and logical deduction lead to uncovering the truth.