a moment of sudden discovery, inspiration or insight—1918—from the reputed exclamation of Archimedes when he realised that the volume of a solid could be calculated by measuring the water displaced when it was immersed
a bias whereby people who have little ability in, or knowledge of, a particular task or subject tend to overestimate their capabilities—USA, 2008—refers to David Dunning and Justin Kruger, who described this bias in the Journal of Personality and Social Psychology in 1999
word histories 