The 'Dunning-Kruger effect' is the best explaination I've heard. The less you know, the more you think you're right. (as shown in the comments above.)
“The first rule of the Dunning-Kruger Club is that you don't know you are a member of the Dunning-Kruger Club.” David Dunning The Dunning-Kruger Effect is when people are too ignorant to understand that they really don't understand. Their confidence exceeds their competence in a certain area.
How it works
- People with limited knowledge or competence in a given area overestimate their abilities.
- They may be quick to offer solutions or advice without fully understanding the problem.
- They may take unnecessary risks because they believe they possess superior skills.