Definitions by Dumu The Void

Principle of Possible Contradiction

The radical philosophical principle that two contradictory statements can indeed both be true at the same time, challenging the foundational law of non-contradiction that has guided Western logic for millennia. The principle of possible contradiction acknowledges that reality is often more complex than binary logic allows—that someone can love you and hurt you, that a system can be both successful and unjust, that you can want something and not want it simultaneously. This principle is especially relevant in politics, economics, and human relationships, where simplistic either/or thinking fails to capture nuance. Critics say it's just an excuse for sloppy thinking; proponents say it's the only way to think clearly about a world that refuses to be simple.

Example: "She invoked the principle of possible contradiction when he said capitalism couldn't both create wealth and increase inequality. 'It's doing both,' she said. 'Right now. Simultaneously. The contradiction isn't in my argument; it's in the system. Reality doesn't care about your logic.' He couldn't accept that two contradictory things could both be true, which meant he couldn't see the world as it actually was."

Principle of Possible Contradiction by Dumu The Void February 15, 2026

Absolutist Fallacy

Absolutist Fallacy, also Objectivist Fallacy - The belief that one's own perspective is not just valid but objectively true, universal, and beyond question, while all other perspectives are biased, subjective, or simply wrong. The absolutist fallacy assumes that reality has a single correct interpretation and that you happen to possess it. It's the fallacy behind "I'm not political, I just believe in common sense" (where common sense means your opinions), "I'm not ideological, I'm just rational" (where rational means agreeing with you), and "I see things as they are, everyone else sees them through a lens" (where your lens is invisible to you). The absolutist fallacy makes genuine dialogue impossible because you're not participating in a conversation—you're delivering truth to the misinformed.

Example: "He committed the absolutist fallacy daily, presenting his conservative views as 'objective reality' and liberal views as 'ideological delusion.' When she pointed out that objectivity was complicated, he said she was being 'relativist' and that relativism was the death of truth. He didn't see that his 'truth' was just his perspective, elevated to universal status by his own certainty."

Absolutist Fallacy by Dumu The Void February 15, 2026

Patholighting

A vicious form of gaslighting that involves pathologizing the other person—labeling their thoughts, feelings, or behaviors as symptoms of mental illness, thereby dismissing everything they say without engaging with its content. Patholighting happens when you express a legitimate concern and are told you're "being paranoid," when you disagree with someone and are told you're "delusional," or when you question authority and are told you're "schizophrenic." The goal is to make you doubt not just your perception of reality, but your own sanity. Once you've been pathologized, nothing you say matters—it's just the illness talking. Patholighting is especially common in online arguments, where "touch grass," "seek help," and "you're clearly mentally ill" serve as conversation-enders that require no engagement with the actual argument.

Patholighting Example: "She pointed out logical flaws in his argument, and he patholighted her immediately. 'You're so obsessed with this,' he said. 'It's not normal. You might have some kind of disorder.' Her points remained unaddressed, her logic unanswered, but now she was also worried that maybe she was too invested. The patholighting had worked: she was defending her sanity instead of her argument."

Patholighting by Dumu The Void February 15, 2026

Pathospreading

The verbal equivalent of manspreading—taking up excessive conversational space by pathologizing everyone and everything, leaving no room for genuine discussion. The pathospreader occupies the conversation with unsolicited diagnoses, clinical observations, and armchair psychology, treating every interaction as an opportunity to demonstrate their supposed expertise in human behavior. When someone expresses an opinion, they're "defensive." When someone disagrees, they're "in denial." When someone gets angry, they're "having an episode." The pathospreader's interpretations leave no room for the simple possibility that people might just mean what they say. Every conversation becomes a therapy session they're running, and everyone else is just a patient who didn't consent to treatment.

Pathospreading Example: "At the family dinner, Uncle Bob pathospread across the entire conversation. His niece expressed political views—she was 'brainwashed by academia.' His son disagreed with him—he had 'authority issues.' His wife asked him to pass the salt—she was 'passive-aggressively criticizing his attentiveness.' By dessert, everyone had been diagnosed, no one had been heard, and Bob felt very smart. The family felt very tired."

Pathospreading by Dumu The Void February 15, 2026

Pathosplaining

The act of explaining someone's emotional state to them, typically in a condescending manner that dismisses their feelings as irrational, excessive, or symptomatic of deeper issues. Pathosplaining happens when you're told you're "not really angry, you're just projecting," or when your frustration is met with "you seem to have some unresolved trauma around this." It's the emotional equivalent of mansplaining, but with a clinical twist: the pathosplainer positions themselves as the expert on your feelings, diagnosing you from a position of supposed objectivity while ignoring what you're actually saying. Pathosplaining is how people avoid engaging with your points by instead engaging with your supposed psychological state, which they've diagnosed without your consent.

Pathosplaining Example: "She expressed frustration about workplace inequality, and her coworker pathosplained her feelings. 'You're not really frustrated with the system,' he said. 'You're projecting your personal insecurities onto the workplace. Have you considered therapy?' She had considered violence, but that wasn't helping her case. Her feelings were dismissed, her argument ignored, and her coworker felt very wise."

Pathosplaining by Dumu The Void February 15, 2026

Patholighting

A vicious form of gaslighting that involves pathologizing the other person—labeling their thoughts, feelings, or behaviors as symptoms of mental illness, thereby dismissing everything they say without engaging with its content. Patholighting happens when you express a legitimate concern and are told you're "being paranoid," when you disagree with someone and are told you're "delusional," or when you question authority and are told you're "schizophrenic." The goal is to make you doubt not just your perception of reality, but your own sanity. Once you've been pathologized, nothing you say matters—it's just the illness talking. Patholighting is especially common in online arguments, where "touch grass," "seek help," and "you're clearly mentally ill" serve as conversation-enders that require no engagement with the actual argument.

Example: "She pointed out logical flaws in his argument, and he patholighted her immediately. 'You're so obsessed with this,' he said. 'It's not normal. You might have some kind of disorder.' Her points remained unaddressed, her logic unanswered, but now she was also worried that maybe she was too invested. The patholighting had worked: she was defending her sanity instead of her argument."

Patholighting by Dumu The Void February 15, 2026

Arbitrary Burden of Proof

The meta-fallacy where one side is forced to prove every assertion, back every claim, and satisfy every demand for evidence, while the other side can simply move goalposts, demand new sources, dismiss evidence as insufficient, and never provide anything themselves. The arbitrary burden of proof is the debate equivalent of one person carrying a piano while the other skips ahead, occasionally turning around to complain that the piano-carrier isn't keeping up. It's how conspiracy theorists can demand that scientists prove negatives (prove that vaccines don't cause autism, prove that the moon landing wasn't fake), while offering no proof for their own claims and dismissing any evidence against them as part of the conspiracy.

Example: "She was trapped under an arbitrary burden of proof. Every time she provided a source, he moved the sourcepost. Every time she met his standard, he raised it. After two hours, she'd provided twenty sources, and he'd provided zero. When she asked what he believed, he said 'I'm just asking questions.' The questions were infinite, the answers were never enough, and the burden was hers alone."

Arbitrary Burden of Proof by Dumu The Void February 15, 2026