Kinds of knowing
There is knowing that you know;
Knowing that you don’t know;
Not knowing that you know;
and not knowing that you don’t know. This last one is the most dangerous.
The Dunning-Kruger Effect
This is the idea where some people fancy themselves as experts in some field when in fact they are incompetent. They in fact don’t have the competence to know they are incompetent. We are all victims to this effect, to some extent. Many studies have confirmed, for example, that most of us believe we have above-average intelligence, which is statistically impossible. But at the extreme is anosognosia. Anosognosia is associated more with brain defects that seems more like dementia. The sufferer is rendered unaware of their dementia or that their cognitive skills are in decline.
The Big Fish, Little Pond Effect (BFLPE)
Being highly competent among a small group of less competent individuals is better for one’s self-esteem than the same person being among a larger group of more highly competetent people. BFLPE is related to the Dunning-Kruger Effect in that manner, except that it is a factor affecting one’s actual success in their chosen field, since it links directly to self-esteem.
Sutor, ne ultra crepidam
Latin: “Shoemaker, not beyond the shoe.” Or, don’t make pronouncements beyond your expertise. This kind of sums up the last two ideas.