Maybe this person is not impossible but he/she would have to be a zen master, or another disciplinary that has worked to strike this psychic balance in their life. They would probably be actively interested in accessing and excercising all parts of their brains for its own sake. This would take a genius with the right set of desires and influences. Also He/she would be essencially without an ego, feeling solely like an expression of the universe. He/she would have to arrive at Nirvana. But they would likely not score 50% in every prefference because the test does not encompass all aspects of the personaliy; that would be impossible. Instead the test asks the tester to choose individual prefferences. If this person was trully 50% in every category, they would have to be 50% in every answer which means that they could not have a definite answer to ANY question on the test, which would make the test useless to him/her. Otherwise, it would just be a matter of luck or poor introspection from the tester; another test, better understanding of the questions and/or more self awareness would create much more feasable results.
