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Taxicab Fallacy

logic_fallacy worldview_philosophy deep_plus

A taxicab fallacy is the inconsistency of using a principle, standard, or method only while it supports one’s argument and then abandoning it when it becomes inconvenient.

At a Glance

A taxicab fallacy is selective reasoning: a person appeals to a standard when it helps his case and drops that same standard when it would challenge his conclusion.

Key Points

Description

The taxicab fallacy describes a pattern of argument in which someone accepts a rule, method, or standard only as long as it serves his purpose, then abandons it once it becomes inconvenient. The image is of riding in a taxicab to a desired destination and then getting out, as though the ride had value only so long as it was useful. In worldview discussion, apologetics, and theology, the term is often used to expose double standards in interpretation and debate. However, identifying a taxicab fallacy does not by itself prove that the discarded principle was correct; the principle itself still must be tested for truth, coherence, and faithfulness to Scripture.

Biblical Context

Scripture consistently calls God’s people to honesty, integrity, and impartial judgment. While the term itself is extra-biblical, the concern behind it fits biblical warnings against hypocrisy, double standards, and judging others by one rule while excusing oneself by another.

Historical Context

Taxicab Fallacy is a modern label used in philosophy, informal logic, and online argument critique. It is not a classical technical fallacy name, but a vivid informal description of inconsistent reasoning.

Jewish and Ancient Context

Second Temple Jewish and rabbinic discussion often valued consistent application of principle, especially in judgment and instruction. Still, the modern phrase itself is not an ancient Jewish technical term and should not be read back into that setting.

Primary Key Texts

Secondary Key Texts

Original Language Note

There is no biblical Hebrew or Greek term for this modern phrase. It is an English idiom drawn from ordinary speech about taking a taxicab only as far as it is useful.

Theological Significance

The term matters theologically because Christians are called to speak truthfully, judge impartially, and reason consistently under the authority of Scripture. It can help expose selective use of evidence in doctrine, ethics, and apologetics.

Philosophical Explanation

In logic and argument analysis, the taxicab fallacy is a form of inconsistency: a person invokes a principle while it supports his preferred conclusion and then discards that same principle when it no longer helps. It is closely related to special pleading, but the label is broader and more informal.

Interpretive Cautions

Do not confuse a valid critique of inconsistency with proof that the underlying principle is false. Also, not every change in method is a fallacy; sometimes a principle is rejected because it is shown to be unjustified or inapplicable.

Major Views

This is a modern logic term, not a doctrine with competing theological schools. Its usefulness lies in evaluating argument consistency rather than establishing a specific biblical interpretation.

Doctrinal Boundaries

This entry concerns reasoning, not a point of doctrine. It should be used to test arguments, not to replace biblical exegesis or to silence legitimate examination of premises.

Practical Significance

In practice, the term helps readers recognize double standards in teaching, counseling, apologetics, and everyday discussion. It encourages consistent standards and careful self-examination before criticizing others.

Related Entries

See Also

Data

Machine-readable JSON for Taxicab Fallacy

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