Confirmation Bias of Common Sense

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.

Confirmation Bias of Common Sense by Dumu The Void February 11, 2026