personality goes a long way
Summer Gale had this personality test action going on, I took it. Apparently, I have a personality.
Independent, innovative, logical and driven by the inner world of ideas and possibilities, the INTJ often appears to others as a quietly self-confident (and sometimes stubborn) critic of the status quo, convinced that reality can be altered, the future reshaped. Wherever there is a need for change in systems, programs, concepts or theories, INTJs will be working behind the scenes to reorganize and revise. This type's focused attention to the personal mission may be inspiring or frankly obsessive, depending on the observer's viewpoint or the success of the enterprise. Introspective and somewhat shy, INTJs place their trust in logical analysis and intuition to guide their thoughts and decisions. More feeling types may find them chilly, and more practical types accuse them of being unrealistic, but INTJs take their cues mostly from those they recognize as intelligent. Often attracted to theoretical, analytical and methodological areas of inquiry, INTJs succeed in a wide variety of fields, from ones heavily dependent on mathematics and science to more philosophical, literary or applied disciplines.