Appeal to Ignorance

Appeal to Ignorance (Argumentum ad Ignorantiam) is a logical fallacy in which a person claims that a statement is true if it can't be proven false, or a statement is false if it can't be proven true.

Adam: Have you ever seen any studies confirming that it's better for these people to not pursue any college degrees? There's no proof so we can't say that these people are better off not going to college. 

ET: I can ask you the same question whether you've ever seen any evidence that getting a college degree is better than doing something that you really like. The mere fact that there's no proof that doing a trade that you like is better than getting a liberal arts degree doesn't indicate that my argument is necessarily wrong.

Full dialogue here: All argumentation fallacies

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