Knowingly-Deliberate Ignorance is a form of cognitive bias where an individual deliberately avoids seeking knowledge or understanding in situations where they could gain further insight. This type of ignorance can take many forms, such as: selective ignorance, where a person deliberately limits their awareness of certain facts or events; willful ignorance, where an individual chooses to remain unaware of certain facts or information due to fear or lack of interest; and, intentional ignorance, where an individual takes steps to remain ignorant of particular facts or events. In all cases, the individual is making a conscious decision to remain in the dark about certain matters. Knowingly-Deliberate Ignorance can be harmful, as it can lead to a lack of understanding and impede decision-making.