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People tend to hold overly favorable views of their abilities in many social and intellectual domains….This overestimation occurs, in part, because people who are unskilled in these domains suffer a dual burden: Not only do these people reach erroneous conclusions and make unfortunate choices, but their incompetence robs them of the metacognitive ability to realize it.–”Unskilled and Unaware of It: How Difficulties in Recognizing One’s Own Incompetence Lead to Inflated Self-Assessments,” by Justin Kruger and David Dunning Department of Psychology Cornell University, Journal of Personality and Social Psychology December 1999 Vol. 77, No. 6, 1121-1134