Overconfidence : Donald Moore helpfully disambiguates this into three pieces: Overestimation : thinking that you're better than you are. Absolute error. Overplacement : mistakenly thinking you're better than others. Rank error. Overprecision : excessive faith that you know the truth. Calibration error. It takes a little work to distinguish them. Overplacement can come apart from overestimation if you are accurate about yourself, but think everyone is dumber than they are. You could have overprecision without overestimation by being excessively sure you're terrible. And you could be unlucky enough to overestimate without overplacing, if you correctly rank everyone else above you, but still rate yourself too highly in an absolute sense... inflammaging (medical n.): general, chronic, subclinical inflammation associated with aging. max fac (trade adj.): 'maximum facilitation'; of a proposed trade system avoiding bo...