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Cogito ergo sum
Logic and rhetoric

Key articles

* Logical fallacy
* Syllogism
* Argument

General logic

* Reductio ad absurdum
* Modus tollens
* Presentism
* Argument by assertion
* Extended analogy
* Appeal to faith

Bad logic

* Presentism
* Terrorism-baiting
* Infinite regress
* Post-designation
* Fallacy of accent
* پاسخ کورتیر

v \- t \- e

Poisoning the well (also called the smear tactic) is a rhetorical technique and logical fallacy that uses the association of negative emotions to distract a subject from actual evidence in an argument.

Poisoning the well is an appeal to hate.

The usual method is to point out the unpleasant nature of the person making the opposing argument, in which case it is a special case of a personal attack or ad hominem. In general, "to poison the well" means to pre-provide any information that could produce a biased opinion of the reasoning, positive or negative.

It can be done subtly or quite blatantly. A subtle way of poisoning the well would be to use particular adjectives in introducing something that would influence people who are about to hear an argument. A good example would be introducing an argument that you disagree with by using the phrase 'Do you believe this rubbish?' The word 'rubbish' poisons the well.

In a more blatant display, someone can make an outright personal attack in an introduction. For example, asking people to remember that a person has been in prison before listening to their statements; the well is now "poisoned" because people are likely to distrust a person making an argument knowing that they're a convict, regardless of the reasoning that they put forward.

## See also[edit]

* Appeal to emotion
* Antisemitism — in the context of which the accusation of literal well-poisoning goes back millennia. As more recent example, according to Haaretz, Israeli troops were ordered to poison Palestinian wells. Source: https://www.haaretz.com/israel-news/2022-10-14/ty-article-magazine/.highlight/documents-confirm-israelis-poisoned-arab-wells-in-1948/00000183-d2b2-d8cc-afc7-fefed64d0000
* FUD
* Loaded language
* Shill gambit

### Want to read this in another language?[edit]

Se você procura pelo artigo em Português, ver Envenenar o poço.

## External links[edit]

* See the Wikipedia article on Poisoning the well.
* Poisoning the Well, Fallacy Files
* Poisoning the Well, About.com
* Poisoning the Well, Internet Encyclopedia of Philosophy
* Fallacy: Poisoning the Well, Nizkor Project

v \- t \- e

Articles about logical fallacies

Informal fallacies: |  Appeal to tradition • Appeal to novelty • Appeal to nature • Argument from morality • Argumentum ad martyrdom • Big words • Certum est quia impossibile est • Morton's fork • Friend argument • Exception that proves the rule • Extended analogy • Hindsight bias • Race card • Moralistic fallacy • Release the data • Gish Gallop • Terrorism-baiting • Uncertainty tactic • Greece-baiting • Ham Hightail • Red-baiting • Gore's Law • Nazi analogies • Mistaking the map for the territory • Red herring • Quidquid latine dictum sit, altum videtur • Presentism • Sunk cost • Two wrongs make a right • Flying carpet fallacy • My enemy's enemy • Appeal to ancient wisdom • Danth's Law • Argumentum ad lunam • Balance fallacy • Golden hammer • Loaded question • Escape to the future • Word magic • Spider-Man fallacy • Sanctioning the devil • Appeal to mystery • Informal fallacy • Common sense • Post-designation • Hyperbole • Relativist fallacy • Due diligence • Straw man • Good old days • Appeal to probability • Infinite regress • Circular reasoning • Media was wrong before • سفسطه‌ی حد وسط • پاسخ کورتیر • کلمات قلمبه سلمبه • تقلیل به هیتلر • دوگانگی مرتن • Is–ought problem • Ad iram • Just asking questions • 稻草人谬误 • Pink-baiting • Appeal to faith • Appeal to fear • Appeal to bias • Appeal to confidence • Appeal to consequences • Appeal to emotion • Appeal to flattery • Appeal to gravity • Appeal to hate • Argument from omniscience • Argument from silence • Argumentum ad baculum • Argumentum ad fastidium • Association fallacy • Broken window fallacy • Category mistake • Confounding factor • Counterfactual fallacy • Courtier's Reply • Damning with faint praise • Definitional fallacies • Equivocation • Fallacy of accent • Fallacy of accident • Fallacy of amphiboly • Gambler's fallacy • Imprecision fallacy • Moving the goalposts • Nirvana fallacy • Overprecision • Pathos gambit • Pragmatic fallacy • Quote mining • Argumentum ad sarcina inserta • Science doesn't know everything • Slothful induction • Spotlight fallacy • Style over substance • Toupee fallacy • Genuine but insignificant cause • Argument from incredulity • Appeal to age • Argumentum ad nauseam • Phantom distinction • Appeal to common sense • Apelación a la fe • Argumentum ad hysteria •
| Ad hoc: |  No True Scotsman • Moving the goalposts • Escape hatch • Handwave • Special pleading • Slothful induction • Nirvana fallacy • God of the gaps • PIDOOMA • Ad hoc • Tone argument •
| Arguments from ignorance: |  Science doesn't know everything • Argument from incredulity • Argument from silence • Toupee fallacy • Appeal to censorship • Science was wrong before • Holmesian fallacy • Argument from omniscience • Willful ignorance • Argument from ignorance •
| Causation fallacies: |  Post hoc, ergo propter hoc • Correlation does not imply causation • Wrong direction • Counterfactual fallacy • Regression fallacy • Gambler's fallacy • Post hoc, ergo propter hoc (español) • Denying the antecedent • Genuine but insignificant cause •
| Circular reasoning: |  Infinite regress • Argument by assertion • Argumentum ad dictionarium • Appeal to faith • Circular reasoning • Self-refuting idea • Apelación a la fe •
| Emotional appeals: |  Appeal to fear • Appeal to emotion • Appeal to confidence • Deepity • Argumentum ad baculum • Appeal to shame • Appeal to flattery • Tone argument • Appeal to money • Argumentum ad fastidium • Appeal to gravity • Appeal to consequences • Loaded language • Style over substance • Appeal to pity • Appeal to hate • Pathos gambit • Apelación a la piedad •
| Fallacies of ambiguity: |  Fallacy of accent • Equivocation • Fallacy of amphiboly • Quote mining • Fallacy of ambiguity • Moral equivalence • Scope fallacy • Suppressed correlative • Not as bad as • Etymology • Continuum fallacy • Wronger than wrong • Definitional fallacies • Code word • Phantom distinction •
Formal fallacies: |  Confusion of the inverse • Denying the antecedent • Non sequitur • Affirmative conclusion from a negative premise • Nemmeno sbagliato • Not even wrong • Chewbacca Defense • Affirming a disjunct • Illicit process • Four-term fallacy • Negative conclusion from affirmative premises • Fallacy fallacy • Substituting explanation for premise • Enthymeme • Syllogism • Formal fallacy • Existential assumption • Masked man fallacy • دوراهی اشتباهی • Self-refuting idea • Argument by gibberish • One single proof • Affirming the consequent • False dilemma •
Fallacious arguments: |  Bumblebee argument • Fatwa envy • Gotcha argument • Hoyle's fallacy • Intuition pump • Logic and Creation • Not Circular Reasoning • Peanut butter argument • Great Beethoven fallacy • Fallacy of unique founding conditions • Evil is the absence of God • Argument from first cause • How do you know? Were you there? • Argument from design • Argument from beauty • Appeal to nature • Solferino fallacy • Religious scientists • Nothing to hide • Argument from fine tuning • Appel à la beauté • Creep shaming • "I used to be an atheist" • Atheism as a religion • Argumentum ad populum • Argument from morality • Anti-environmentalism • Appeal to bias • Apophasis • Argumentum ad nauseam • Appeal to censorship • Argumentum ad sarcina inserta • Blaming the victim • Bait-and-switch • Danth's Law • Chewbacca Defense • Canard • DARVO • Demonization • Escape hatch • Friend argument • Everyone is racist • Gish Gallop • Greece-baiting • Gore's Law • Ham Hightail • Just asking questions • Leading question • Loaded language • Linking to authority • Loaded question • Lying by omission • Motte and bailey • Nazi analogies • Moving the goalposts • One single proof • Pink-baiting • One-way hash argument • Pathos gambit • Quote mining • Quidquid latine dictum sit, altum videtur • Race card • Red-baiting • Red herring • Release the data • Science was wrong before • Shill gambit • Straw man • Silent Majority • Uncertainty tactic • Style over substance • Terrorism-baiting • Weasel word • What's the harm (logical fallacy) • Whataboutism • تقلیل به هیتلر • Bullshit • Logical fallacy • Pindakaasargument • Envenenar o poço • Banana argument • Canard (português) • Scapegoat • How come there are still monkeys? • Trees cause pollution • Anti-racist is a code word for anti-white • Ontological argument •
Conditional fallacies: |  Slippery slope • What's the harm (logical fallacy) • Special pleading • Conditional fallacy • On the spot fallacy • Appeal to the minority • Argumentum ad populum • Galileo gambit • Professor of nothing •
| Genetic fallacies: |  Genetic fallacy •
|  | Appeals to authority: |  Ipse dixit • Appeal to confidence • Argumentum ad populum • Argument from authority • Linking to authority • Silent Majority • Invincible authority • Appeal to celebrity • Ultracrepidarianism • Appeal to the minority • Galileo gambit • Appeal to identity • Weasel word • Professor of nothing •
|  | Ad hominem: |  Ad iram • Argumentum ad cellarium • Bulverism • Blaming the victim • Tu quoque • Whataboutism • Nutpicking • Jonanism • Demonization • Argumentum ad hominem (français) • Shill gambit • Appeal to bias • Fallacy of opposition • Association fallacy • Damning with faint praise • Pathos gambit • گزاره‌ی حمله‌ی شخصی • Appeal to identity • Argumentum ad hominem • Nazi analogies • Not an argument • Nothing to hide • Envenenar o poço • Scapegoat •
| Imprecision fallacies: |  Apex fallacy • Overprecision • Cherry picking • Overgeneralization • Texas sharpshooter fallacy • False analogy • Appeal to fiction • Spotlight fallacy • Pragmatic fallacy • Selection bias • Anecdotal evidence • Category mistake • Nutpicking • Imprecision fallacy • Confounding factor • Fallacy of accident • Neyman's bias •
Valid logical methods: |  Rapoport's Rules • Negative evidence •
Fallacy collections: |  SeekFind • Nizkor Project • Fallacy Files • Your Logical Fallacy Is • Logically Fallacious •