From Scientific American: We humans are introspective. We observe patterns of our own behavior and we have memories for review. So you probably think you know yourself pretty well, right? Not so fast. In fact, others can have much more accurate impressions of us than we do. That’s according to a review article in the journal Current Directions in Psychological Science. The challenge in knowing oneself is that we have blind spots. These gaps are fueled by fears and an unconscious drive to maintain a particular self-image or self-worth.