What is the Dunning–Kruger Effect?

10. Ego

Dunning and Kruger addressed the role of ego in their study conclusions. Many psychologists and philosophers have examined the role of ego in the Dunning-Kruger effect as well. People become interested in certain subjects and skills as they grow and mature. Gaining expertise is a process of building on existing skill and knowledge. Excessive ego interferes with personal growth and prevents learning. People harboring the belief that they already "know everything" are blocking their ability to learn. They brush off criticism or constructive feedback as ignorance on the part of others instead of examining their own thoughts. Shakespeare showed insight into the consequences of excessive ego when he wrote “The fool doth think he is wise, but the wise man knows himself to be a fool.”