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What Is the Argument from Authority Fallacy?
An argument from authority treats an authority figure's opinion as conclusive proof, especially when the authority has no specific expertise in the topic at hand. Expert opinion is valuable but should be weighed alongside evidence, methodology, and peer consensus.
Also known as Argumentum ab Auctoritate, this is a informal fallacy — the error lies in the content or context of the argument rather than its formal structure.
How to Spot It
Example
"A Nobel Prize-winning chemist says this economic theory is correct, so it must be." Nobel-level chemistry expertise doesn't transfer to economics.
A Stronger Version
"Leading economists at the Fed and IMF have published analyses supporting this theory. Their models account for..."
Warning Signs
- Citing authority without relevant expertise
- Treating one expert's opinion as settled science
- Using titles and credentials as proof
- Ignoring that experts disagree with each other
How to Fix It
Ask three questions: Is this person an expert in this specific field? Do other experts in the field agree? Can I examine the evidence they're relying on?
Paste your text above to scan for argument from authority fallacy patterns and other reasoning errors. Each flagged passage includes an explanation and a suggestion for making the argument stronger.
Related Tools
Try our grammar checker to catch errors automatically, or use the paraphrasing tool to improve sentence clarity.