===Fallacies of relevance based on the age of an idea===
===Fallacies of relevance based on the age of an idea===
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The '''appeal to antiquity''', also known as the '''appeal to tradition''', holds that an idea must be right just because it is old.<ref>[http://www.logicalfallacies.info/relevance/appeals/appeal-to-tradition/ Appeal to Antiquity / Tradition]</ref> Its opposite is the '''appeal to novelty''', which holds that an idea must be right just because it is new.<ref>[http://www.logicalfallacies.info/relevance/appeals/appeal-to-novelty/ Appeal to Novelty]</ref>
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The '''appeal to antiquity''', also known as the '''appeal to tradition''', holds that an idea must be right just because it is old.<ref>[http://www.logicalfallacies.info/relevance/appeals/appeal-to-tradition/ Appeal to Antiquity / Tradition]</ref> Its opposite is the '''appeal to novelty''', which holds that an idea must be right just because it is new.<ref>[http://www.logicalfallacies.info/relevance/appeals/appeal-to-novelty/ Appeal to Novelty]</ref> Both are fallacies of relevance because the mere age of an idea does not tell us whether it is true. For example, an old idea could be a time-tested and sound concept, or it could be an ancient [[superstition]] like [[astrology]]. Similarly, a new idea could be the result of new [[information]] or an intellectual fad like [[postmodernism]].