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Fallacy Library Poisoning the Well
Informal fallacy

Poisoning the Well

Discredits a person in advance so that anything they say is dismissed before it is even considered.

Definition

Discredits a person in advance so that anything they say is dismissed before it is even considered.

Example
Before she even speaks, we are told not to trust her because she is an outsider.
Extended explanation

How to think about it:

Discredits a person in advance so that anything they say is dismissed before it is even considered. In practice, the key question is whether the conclusion is supported by evidence and logic, or whether it depends on this reasoning shortcut instead.

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