Given the relation between the subject and object, is it therefore fair to say that Si and Ni are merely different manifestations of the same thing as determined by functional stack? The same for Ne & Se.
So then it would be really easy to toss the whole mess on 3 axes for a more accurate depiction of personality, amirite? X, Y, Z. Thinking, Feeling, Intuition.
*EDIT Actually, given the Possession thread I missed, that puts it on 2 axes.
If there's a third axis, what is it?