Objective Truth Bias

The specific bias where one believes their own perspective, framework, or worldview simply is objective truth—not a perspective among perspectives, but reality itself perceived clearly. Objective Truth Bias operates when someone says "I'm not biased, I just see things as they really are" while everyone else is blinded by ideology, culture, or self-interest. It's the bias that makes one's own assumptions invisible—they're not assumptions, they're just true. This bias is the cognitive foundation of dogmatism: if you believe you have direct access to objective reality, then disagreement can only be explained by error, bad faith, or pathology in others.

Example: "He didn't argue his position—he simply asserted it as objective truth, and treated all disagreement as evidence of his opponents' irrationality. That's not confidence; that's Objective Truth Bias."

by Dumu The Void March 13, 2026

Evidence-Based Bias

The specific bias where one treats "evidence-based" as an automatic warrant for one's position and a automatic disqualifier for others', without actually engaging the quality, relevance, or interpretation of the evidence. Evidence-Based Bias operates when someone says "the evidence supports my view" as a conversation-ender, without acknowledging that evidence is always interpreted, that different evidence can support different conclusions, that evidence alone never dictates policy or values, and that "evidence-based" is often claimed by all sides. It's the bias that turns the legitimate principle of grounding claims in evidence into a rhetorical cudgel.

Example: "He kept saying his position was 'evidence-based' as if that settled everything—pure Evidence-Based Bias, using the word 'evidence' to avoid actually discussing what the evidence showed."

by Dumu The Void March 13, 2026

Purpose Bias

A cognitive bias where you perceive two or more things that are functionally identical, structurally similar, or practically equivalent as fundamentally different solely because their intended purposes differ. It's the mental shortcut that makes a luxury handbag feel like a "wise investment" while an identical unbranded bag is "frivolous spending." The same knife in a kitchen is a "tool" but in a pocket is a "weapon." A loud car exhaust is "performance" on a sports car but "noise pollution" on a beat-up sedan. Purpose Bias shapes how we judge, categorize, and value objects, actions, and even people based on what we believe they're for, rather than what they actually are. In daily life, it's why we excuse our own harsh words as "honest feedback" while condemning others' identical words as "verbal abuse"—same statement, different purpose, completely different judgment. The bias lies in treating purpose as a magical property that transforms the very nature of things, rather than as one attribute among many.

Example: "He called his own constant phone checking 'staying connected' but his partner's identical behavior 'addiction'—pure Purpose Bias, seeing the same action as completely different based solely on whose purpose he assumed."

by Dumu The Void March 13, 2026