ELI5: What is the Dunning-Kruger effect?

The Dunning-Kruger effect is when someone thinks they're really good at something, but they're actually not very good at all, and they don't even realize it.

Imagine you're learning to draw. At first, you might draw a stick figure and think, "Wow, I'm an artist!" That's because you don't know much about drawing yet, so you don't realize how much you don't know. This is the Dunning-Kruger effect in action.

Think of it like climbing a mountain:

• At the very bottom, you think the peak is close and easy to reach because you don't see the steep climb ahead. This is being overconfident due to inexperience.
• As you climb higher, you start to see how much further you have to go and how difficult it is. Your confidence might dip.
• Eventually, you get good at drawing. You know a lot more, and you realize how much more there still is to learn. You become more realistic about your abilities.

• People who are bad at something lack the skills to accurately judge their own abilities. They can't tell the difference between good and bad work, even their own.
• They also lack the skills to recognize genuine expertise in others.
• As people gain more knowledge and experience, they become more aware of their limitations and less overconfident.