CNK (Common Knowledge)

CNK, or Common Knowledge, refers to information that is widely known and accepted within a particular community or society, requiring no specific proof or explanation. Examples include well-known facts like “the Earth orbits the Sun” or “water boils at 100°C at sea level.” It serves as a shared foundation that allows conversations and understanding to proceed smoothly without repeatedly verifying basic facts. In essence, CNK helps streamline communication by focusing on new or less familiar information, assuming everyone has a common understanding of certain fundamental truths.