A study published in the journalIntelligencebreaks down what we consider or dumbest mistakes into three categories.

Essentially, its when unskilled individuals think theyre better at something than they really are.

As youd expect, this leads to all kinds of stupid mistakes.

For example, perhaps youve always thought of yourself as a whiz at fixing computers.

Theres no chance this ones never happened to you.

When we dont pay attention, we tend to do stupid stuff.

Peoples conception of unintelligent behavior| IntelligenceThe Psychology of the Breathtakingly Stupid Mistake| Scientific American

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