Logical Fallacy: Appeal to Possibility

When a conclusion is assumed to be true, only when there is a possibility. Something that is possible, is possible, it not true with 100% certainty. This is called the 'appeal to possibility.'

The Logical form:

Logical Form:
X is possible.
Therefore, X is true.*


1. The Low GPA

Brittany: I haven’t applied to any other schools besides Harvard.

Casey: You think that is a good idea?  After all, you only have a 2.0 GPA, your SAT scores were pretty bad, and frankly, most people think you are not playing with a full deck.

Brittany: Are you telling me that it is impossible for me to get in?

Casey: Not *impossible*, but...

Brittany: Then shut your trap.*

2. Some Simple Examples

Something can go wrong (premise).
Therefore, something will go wrong (invalid conclusion).


If I do not bring my umbrella (premise)
It will rain. (invalid conclusion).**


*Logically Fallacious: The Ultimate Collection of Over 300 Logical Fallacies by Bo Bennett, PhD


Categorisation: philosophy → logic → logical fallacies → formal

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