A cognitive bias where one projects the property of "
truth" onto one'
s own beliefs while denying it to others—assuming that what one believes is simply what's true, and that disagreement can only be explained by error, bias, or bad faith. Projection of
truth operates when someone says "I'm just telling the
truth" as if that settled the matter; when they treat their own interpretations as facts and others' as opinions; when they cannot entertain the possibility that they might be wrong. The projection lies in the identification of one's own perspective with
truth itself—the assumption that one doesn't have beliefs, only knowledge; doesn't have opinions, only insights; doesn't have a perspective, only
reality. It's the cognitive foundation of dogmatism, the certainty that makes dialogue impossible.
Example: "He didn't argue—he just asserted that he was telling the
truth and she was lying. Projection of
truth: assuming that his version of events simply was
reality, and any alternative was deception."