Evidentialist Fallacy

A fallacy where one insists that only claims supported by scientific evidence (as narrowly defined) can be considered real, true, or worthy of belief—dismissing all other forms of knowledge, experience, and understanding as illusory or meaningless. The Evidentialist Fallacy mistakes one mode of knowing for the only mode of knowing, treating empirical evidence as the sole legitimate path to truth while ignoring that evidence itself rests on philosophical assumptions (like the reliability of perception, the uniformity of nature) that cannot be empirically proven. It's the fallacy behind "if you can't prove it in a lab, it doesn't exist"—a position that would dismiss love, justice, beauty, meaning, and most of what makes life worth living.

Example: "He claimed his friend's depression wasn't 'real' because you couldn't measure it with a blood test—pure Evidentialist Fallacy, mistaking the absence of one kind of evidence for the absence of reality itself."

by Dumu The Void March 13, 2026

Falsifiability Fallacy

A fallacy where one insists that only claims that can be falsified (proven false through empirical testing) can be considered scientific, meaningful, or real—misapplying Karl Popper's demarcation criterion for science as a universal standard for all knowledge. The Falsifiability Fallacy treats "this claim isn't falsifiable" as equivalent to "this claim is meaningless," ignoring that many meaningful claims (historical events, mathematical truths, ethical principles, subjective experiences) aren't falsifiable in Popper's sense. It's the fallacy behind dismissing philosophical questions as "not even wrong" and treating the limits of empirical testing as the limits of reality itself—a profound confusion between a useful criterion for distinguishing science from non-science and a supposed criterion for distinguishing sense from nonsense.

Example: "He dismissed the question of whether love exists as meaningless because it wasn't falsifiable—the Falsifiability Fallacy in action, using a tool for identifying scientific claims as if it were the gatekeeper of all reality."

by Dumu The Void March 13, 2026

Majoritarian Fallacy

A fallacy and metafallacy where one argues that slavery is acceptable if a majority votes for it, that atrocities are justified if a majority supports them, that abuses are legitimate if they have popular backing. The Majoritarian Fallacy confuses descriptive fact (many people want this) with normative justification (this is therefore right)—and worse, uses majority support to immunize atrocities from critique. It's the logic behind "if it was so bad, why did everyone go along with it?" and "democratically elected authoritarianism is still democracy" and "the people have spoken." The fallacy lies in treating majority preference as moral warrant, as if numbers could transmute exploitation into legitimacy, as if counting hands could launder blood. It's a metafallacy because it preemptively delegitimizes critique—challenging the atrocity becomes challenging the people, questioning the majority becomes questioning democracy itself.

Example: "He defended the regime by pointing to election results—as if 51% support made concentration camps acceptable. Pure Majoritarian Fallacy: treating majority preference as if it could sanctify any horror."

by Dumu The Void March 14, 2026

association fallacy

When someone's character, actions, or opinions are judged SOLELY based on a group or person they are associated with, rather than their own merits or actions. Essentially, it's assuming that negative traits of one individual or group automatically apply to others who are connected to them.
Works on the basis of things other than people, (ideas, groups, etc.)

Association fallacy on the basis of people:
John James has a brother who committed fraud and petty theft, so we should really keep an eye on John because he probably learned a thing or two from his brother!
Didn't Bob Generic spend some time in that labor union? Yeah, we should kick him out before he starts spouting off stuff about eating the rich!
Association fallacy on the basis of ideas:
The Conservative Party has deep ties to traditionalism, nationalism, and anti-communism. Y'know who else did? THE NAZIS! LOCK THOSE GENOCIDAL, RACIST BASTARDS UP!
The Democratic Party has deep ties to liberalism and worker's rights. Y'know who else did? THE COMMIES! LOCK THOSE GENOCIDAL, OPPRESSIVE BASTARDS UP!

by PostTraumaticSwagDisorder May 8, 2025

Quizmaster Fallacy

When unsure in a multiple-choice quiz, you should always pick the answer that doesn't follow the pattern of the others.
For example, if the question is "What year did the US and Britain go to war?" and the answers are:

A) 1700
B) 1750
C) 1812
D) 1850

You should always pick 1812, because it doesn't follow the pattern of round numbers.

"How did you know that was the right answer?"

"It didn't follow the pattern of the other answers, why else would the Quizmaster have put it there? It's the Quizmaster Fallacy in action!"

by Carnefice May 10, 2025

Technobabble Fallacy

The mistaken belief that an argument is valid or true simply because it uses complex, scientific-sounding, or technical language—regardless of whether the content makes any actual sense.

“Quantum vibrations in your DNA resonate with the cosmic frequency of abundance, aligning you with the higher dimensional matrix of manifestation.”

“Wow, that sounds deep!”

“Nah, bro. That’s just the technobabble fallacy.”

by Jo Burn June 5, 2025

Revisionism Fallacy

Aka, the “Liberty Cabbage Fallacy”, When people forcefully change the meaning of a word or concept for political or social reasons, then pretend that new meaning is legit just because it’s popular or approved by institutions.

“Man I love Liberty Cabbage!”

“You mean Sauerkraut?”

“No it’s liberty cabbage bc German bad!”

“Thats just a revisionism fallacy, everyone’s just gonna call it sauerkraut the moment your social opinions lose grace”

by NathanMcCulley June 12, 2025