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• n  total certainty or greater certainty than circumstances warrant

• Experience can also lead to overconfidence: a study in the journal Accident Analysis Prevention found that licensed race-car drivers had more on-the-road accidents than controls .
• He worked his team hard for the Rose Bowl game, diligently guarded them from ballyhoo, banked on Stanford's overconfidence.
• Fukuyama's sharpest insight here is how the miraculously peaceful end of the cold war lulled many of us into overconfidence about the inevitability of democratic change, and its .

• certitude
• cocksureness

News & Articles

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• Your Overconfidence Can Actually Be Dangerous
  The adage “often wrong, never in doubt” may be an accurate assessment of the way many people think, a flaw that may lead to unsettling consequences. In a new study, researchers investigated overprecision – excessive confidence in the accuracy of beliefs. Such overconfidence can lead to, among other things, overvaluing investments, inaccurate diagnosis by physicians and an intolerance [...]
  June 13, 2013 - Psych Central
• People are overly confident in their own knowledge, despite errors
  Overprecision -- excessive confidence in the accuracy of our beliefs -- can have profound consequences, inflating investors' valuation of their investments, leading physicians to gravitate too quickly to a diagnosis, even making people intolerant of dissenting views. Now, new research confirms that overprecision is a common and robust form of overconfidence driven, at least in part, by excessive ...
  June 10, 2013 - Science Daily

Quotes

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• John Pantsil in The Associated Press
  Our problem against Brazil was overconfidence,Pantsil said. "We wanted to do it so much and inexperience hurt the team. Now we have that experience because we have been there before. We are going to keep our heads, focus, and we will have...
• Bill Richardson in FOXNews
  I think any discussions about transition and Cabinet posts are grossly premature. They should not happen because we haven't won this race. This is going to be a close race. I think everybody should guard against overconfidence,said Richardson.
• Rick Pitino in International Herald Tribune
  We had a plan from the beginning, we stuck to it and we didn't deviate from it and it's helped us immensely,Pitino said. "There was never any overconfidence on where we were ranked earlier in the season and there was never any panic when...