Why incompetent people think they're amazing

People have a tendency towards "illusory superiority," that is, they imagine themselves to be better than others. Interestingly, the more incompetent you are, the more superior you feel. It comes down to the fact that people who are bad at something "lack the very expertise needed to recognize how badly they're doing." This phenomenon is known as the Dunning-Kruger effect, and is explained in this TED-Ed video.

[via Open Culture]