The Dunning-Kruger effect is one of those cleanly stated insights that can at once make you feel relieved and hopeless. It is a cognitive bias which lends confidence to ignorance. Wikipedia compactly describes the effect as follows:
“…people reach erroneous conclusions and make unfortunate choices but their incompetence robs them of the metacognitive ability to realize it.” They therefore suffer an illusory superiority, rating their own ability as above average. This leads to a perverse result where people with less competence will rate their ability more highly than people with relatively more competence.
This dry, academic version actually understates both the richness and emotional complexity of what is going on. This richness begins with the subjective consequences of the impasse: the expert is exasperated, while the novice actually feels contemptuous and superior. The situation is stable: the expert gropes for a way to demonstrate the validity of his view at a level the novice can understand and is reduced to sputtering incoherence, which only serves to strengthen the novice’s illusory sense of superiority. Play out the broader effects of this little piece of sketch comedy, and you get all the pathos and pageantry of human society at the grandest scales.