F034 • Informal - Relevance/Genetic Fallacies
Also known as: Historical Fallacy, Temporal Snobbery
There is a particular kind of dismissal that feels intellectual but is not: the casual wave of the hand at ideas from the past, as if their age alone disqualifies them. Chronological Snobbery is the assumption that we, the living, have outgrown everything our predecessors thought -- that being later in time automatically means being wiser. It is the Appeal to Novelty's more sophisticated cousin, and it tends to feel less like a bias and more like common sense.
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X was believed/practiced in the past; the past was less advanced; therefore X is wrong/irrelevant
We do know more than our ancestors in many domains. Modern medicine is better than ancient medicine. Modern physics has superseded Aristotelian physics. There is real progress, and acknowledging it is not snobbery. But progress is uneven. We have not outgrown everything old. Ancient insights about logic, ethics, human nature, and governance still hold up under scrutiny -- not because they are old, but because they are good. Chronological Snobbery slides past this distinction. It treats the passage of time as if it were an argument, so that 'they believed that in the Middle Ages' becomes a refutation rather than a historical observation. The date on an idea tells you when people thought it, not whether they were right. Dismissing an idea because it is old is just as intellectually lazy as accepting one because it is traditional -- it is the same shortcut, pointed in the opposite direction.
| When the idea depends on outdated factual information that has been corrected |
| In rapidly advancing fields where older theories have been empirically superseded |
| When historical context genuinely makes the idea inapplicable to current circumstances |
| When combined with substantive critique, not just temporal dismissal |
| You might notice yourself dismissing an idea the moment you learn how old it is, before you have actually engaged with what it says. |
| Watch for the phrase 'that is outdated' functioning as a refutation rather than as an observation that invites further inquiry. |
| Pay attention to whether you are evaluating the content of an old idea or just reacting to the fact that it is old. These feel different if you slow down enough to notice. |
| Notice the assumption that progress is uniform across all domains -- that because we have better technology, we must also have better ethics, philosophy, and self-understanding. |
| Watch for the quiet self-congratulation that can come with dismissing the past, as if being born later were an intellectual achievement. |
| Thinking that old ideas are always worth preserving -- some genuinely have been superseded, and recognizing that is not Chronological Snobbery. The fallacy is in dismissing ideas because they are old, not in recognizing that some old ideas are wrong. |
| Not recognizing when temporal context does matter -- medical treatments from the 19th century often should be abandoned, because we have better evidence now. The key is whether the dismissal is based on evidence or just on the calendar. |
| Confusing this with a genuine critique of outdated assumptions. If you can articulate what has changed and why the old view no longer applies, that is not snobbery -- that is an argument. |
| Chronological Snobbery |
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| Dismissing ideas, beliefs, or practices from the past as necessarily inferior, wrong, or outdated simply because they are old, without engaging with their actual content or considering that they might still be valid. |
| The age of an idea doesn't determine its truth or value. Many old ideas remain true (mathematics, logic, certain philosophical insights), while some new ideas are false. Progress isn't inevitable, and not all change is improvement. This fallacy assumes temporal superiority without justification. |
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