Ne and Si
A lot of people typed as xNxP often end up in serious conflict with those typed as xSxJs. According to Jungian theory, the NPs have Ne (extraverted intuition) as a dominant or auxiliary function, and Si (introverted sensation) as a tertiary or inferior function. SJs are just the reverse: Si is dominant/auxiliary, and Ne is tertiary/inferior. So the conflict is perhaps unsurprising. It does seems that NPs and SJs share certain characteristics, however. For example, orientation seems to be a specialty of both NPs and SJs, both spatially and temporally. Maps are to me the quintessentially Si method of orienting, but I’ve observed that even those NPs (especially ENPs?) that `don’t get maps’ always have some system for orienting - remembering the layout of a house, being able to picture where everything and/or everyone was situated at a given time/place (e.g., knowing exactly on which shelf in which aisle the 7-grain, no-gluten bread is on), having a knack for knowing which direction is north, etc. A kind of personal, experiential map. Same thing for memory - locating yourself in time. Both NPs and SJs are - especially from other kinds of people’s perspective - obsessed with memory, with the relation between what is and what was. I think of Si as a recording function, and Ne as a coherence function; both are looking for the relations between things. In both cases, there is a sensitivity to whether something is stable or changing; Si leans towards the stable; Ne towards the change. This leads to conflict, since they’re on opposite sides of the coin, but there is an agreement between the two types about what the coin is.
