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| Cogito ergo sum|
Logic and rhetoric
- P1: Source X supports Y.
- P2: (unstated) Source X is necessarily correct.
- C: Y is necessarily correct.
- Einstein believed in a god, so I'm going to.
- The world was created in seven days, because the Bible says so.
- [Famous Person X] uses [Product Y]; so will I.
- Many Christians make a special case for the Bible / God / Jesus, arguing that everything else can be questioned except God. Often, this relies on the circular reasoning that God inspired the Bible because the Bible says so.
Such an argument is fallacious because there is no given reason why the authority's word should be accepted as final. The fallacy also faces the issue that only the authority's opinion is considered, while no opposing arguments are.
- supporting the authority of the authority (e.g., the authority is an expert in the field, has been widely published, and agrees with scientific consensus) and
- hedging your bets (because even the most qualified authorities make mistakes) and asserting that the authority's support merely makes an argument likely true, not necessarily true.
Ultimately, however, this fallacy underscores the weakness of citing authorities instead of arguments.
- "Invincible Authority" (old version), Bruce Thompson
- "Invincible Authority Fallacy", SeekFind.net (a YEC Christian website)
- Encyclopedia of Logical Fallacies Encyclopedia of Logical Fallacies SeekFind (archived from December 2, 2018). "Those who know Jesus Christ do not need fallacies. All others do."