Here's why:
* Affirmative Burden: In most debate formats, the affirmative team has the burden of defining the topic and presenting a specific plan or resolution. They set the terms of the debate.
* Negative Response: The negative team's role is to refute the affirmative's arguments and demonstrate why their plan is flawed, impractical, or undesirable.
* Fairness: Requiring the negative to define the topic could create an unfair burden and limit their ability to respond effectively to the affirmative's arguments.
Exceptions:
* Unusual or Ambiguous Topics: If the topic is particularly obscure or open to multiple interpretations, the negative might suggest a specific definition for clarity.
* Mutual Agreement: Both teams might agree to define the topic jointly to ensure a clear and focused debate.
* Specific Debate Format: Some less common debate formats might have different rules regarding definitions.
Key Point: While the negative team may not be required to define the topic, they can still challenge the affirmative's definition if they believe it is unfair or unreasonable.
Ultimately, the focus of the debate should be on engaging in a meaningful and intellectually stimulating discussion on the topic at hand.