When you start on a learning path, you may feel confident in learning, but the better you get, the more self-conscious you become of what you can't do or understand. When you delve deeper, you'll find some ideas that get sharpened and others that get more complicated and nuanced. It can c...

We may feel that we are not smart enough to do what we do. One explanation for this is the Dunning-Kruger effect: when you are incompetent, you can't know you're incompetent and can't properly assess your own competence.

Knowledge structures. The more knowledge you learn, the more subtle patterns appear. Consider learning English. The word "good" may be sufficient until you know words like "fine", "excellent", "stupendous", sublime."