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A philosophical dead-end stemming from a misreading of Kant, which asserts that all human perception and cognition is nothing but confirmation bias. Since we can never know the "thing-in-itself" (noumenon) and only interpret phenomena through our mental categories, this view claims every observation is simply confirming the pre-existing structures of our mind. It’s a radical skepticism that makes genuine learning or surprise impossible, reducing all experience to a tautological loop.
Example: After a surprising scientific discovery that overturns a theory, someone dismisses it by saying, "The new data only 'confirms' the scientists' hidden bias toward novelty. They were biased to find a change, just as the old guard was biased to find stability. It's all just confirmation bias of everything." This nihilistic take uses epistemology to void empirical evidence entirely.
by Dumu The Void February 9, 2026
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The emotionally motivated tendency to seek and interpret evidence in ways that protect or enhance one's self-image. When success occurs, we confirm it was due to our skill; when failure occurs, we confirm it was due to external factors. We remember our contributions vividly and others' forgetfully. We judge our own ethically ambiguous actions by our intentions, and others' identical actions by their outcomes. This bias isn't about accuracy; it's about maintaining a coherent, positive narrative of the self.
Self-Serving Confirmation Bias Example: You ace a test and attribute it to intelligence. You fail a test and blame the unfair questions or lack of sleep. Your coworker, observing your performance, sees the opposite pattern in you. Both of you are exhibiting Self-Serving Confirmation Bias. The ego is not a neutral observer of your life; it is a lawyer, and its client—the self—is always innocent, always capable, always the hero of its own story.
by Dumu The Void February 11, 2026
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Confirmation Bias Blind Spot

The cognitive inability to recognize one's own confirmation bias while easily detecting it in others. This is the meta-bias that makes confirmation bias so resistant to correction. You can see how your political opponent selectively reads news; you cannot see how you do the same. The blind spot is structural: self-awareness requires a neutral vantage point, but there is no such vantage point. You cannot step outside your own confirmation processes because those processes are what constitute your reasoning.
Confirmation Bias Blind Spot Example: "I read diverse sources and follow the evidence wherever it leads. My opponent, however, lives in an echo chamber." This statement, sincerely believed, is the Confirmation Bias Blind Spot speaking. The speaker cannot perceive the filters they apply—the choice of which "diverse sources" to trust, which "evidence" to weight heavily, which conclusions "logically follow." Their bias is not in their data; it's in their algorithm for processing data. And algorithms cannot see themselves.
by Dumu The Void February 11, 2026
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Mass Confirmation Bias

The society-wide synchronization of confirmation bias, typically driven by centralized media, educational curricula, and state propaganda. When billions of people consume the same filtered information, apply the same interpretive frameworks, and are rewarded for expressing the same conclusions, their individual confirmation biases align into a single, massive, self-reinforcing system. Mass confirmation bias produces the phenomenon of "obvious truths" that are, in fact, contingent upon an enormous, invisible infrastructure of bias maintenance.
Mass Confirmation Bias Example: During wartime, a nation's citizens confirm the righteousness of their cause through newspapers, films, school lessons, and patriotic songs. They see enemy atrocities and ignore their own. This isn't conspiracy; it's Mass Confirmation Bias operating at scale. The information environment is so thoroughly structured to confirm a single narrative that perceiving alternatives requires heroic epistemic independence—a resource as rare as it is fragile.
by Dumu The Void February 11, 2026
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Shared Confirmation Bias

The phenomenon where members of a group actively reinforce each other's biased information processing through social feedback. An individual tentatively expresses a preference; others nod, agree, or amplify. This social confirmation strengthens the individual's conviction and signals to the group that this position is acceptable. The process iterates, rapidly producing a consensus that is more extreme and more confident than any member's initial inclination. Shared confirmation bias is the engine of groupthink, polarization, and ideological lock-in.
Shared Confirmation Bias Example: In an online forum, someone posts mild skepticism about a popular technology. Replies flood in: "Actually, it's more efficient than you think," "Here's a study," "You clearly don't understand the architecture." The skeptic, now publicly challenged, either converts or retreats. The remaining participants, having jointly confirmed their superiority, emerge more convinced than ever. This is Shared Confirmation Bias—social proof weaponized to enforce consensus.
by Dumu The Void February 11, 2026
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The shared, tacit assumptions that enable communication and cooperation within a group, maintained by collective confirmation. When everyone in a community starts from the same axioms and continually reinforces them through discourse, the axioms become "common ground"—so obvious they need not be stated. This bias is functional: it reduces negotiation costs and enables coordinated action. It is also a prison: it makes the group's foundational premises invisible and unassailable from within.
Confirmation Bias of Common Ground Example: In a corporate meeting, everyone confirms that "shareholder value" is the ultimate goal. This common ground is never debated; it's the platform upon which all other debates happen. An outsider asking "Why maximize shareholder value?" is met with confused silence—they've violated the Confirmation Bias of Common Ground. The group's bias is so deeply shared they've forgotten it's a bias.
by Dumu The Void February 11, 2026
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The process by which certain beliefs become elevated to the status of "common sense" precisely because they have been confirmed so often, by so many, for so long, that their confirmation is no longer visible as an active process. Common sense feels like direct perception of reality, not a hypothesis, because its confirmation history is buried in cultural memory. This bias hides the contingency of these beliefs, making alternatives seem not just wrong, but insane. Common sense is the ghost of confirmation bias after it has become invisible.
Confirmation Bias of Common Sense Example: In 1700, it was common sense that the Earth was young and that kings ruled by divine right. These weren't beliefs; they were the backdrop of reality. Questioning them was folly. Today, common sense includes human rights and germ theory. Confirmation Bias of Common Sense reveals that yesterday's common sense was just a massively confirmed hypothesis, and today's will be tomorrow's historical curiosity. The bias is in forgetting that all sense was once nonsense.
by Dumu The Void February 11, 2026
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