The problem was that I wanted it to be as reliable as a road map. … I wanted the type map to conclusively show me the routes that, say, ESTPs took in their thinking and behavior. When it didn’t ‘work,’ I was disappointed. How could something so useful to me internally be so unreliable in external application, even after extensive study?
Which do you trust more to give you reliable information about type: observation or introspection? And what is your type preference? Of course, all type users rely upon both the observation of others and internal self-reflection to expand and confirm their understanding of personality type. But it seems as though we differ in which we prefer.