Preference falsification is the act of communicating a preference that differs from one's true preference. The public frequently conveys, especially to researchers or pollsters, preferences that differ from what they truly want, often because they believe the conveyed preference is more acceptable socially. The idea of preference falsification was put forth by the social scientist Timur Kuran in his 1995 book Private Truths, Public Lies as part of his theory of how people's stated preferences are responsive to social influences. It laid the foundation for his theory of why unanticipated revolutions can occur. The concept is related to ideas of social proof as well as choice blindness.