INTJ
Finding boundaries through experimentation - INTJ feels lost without boundaries - a pin-pointed fact somewhere between the boundaries is seen as a useless bit of trivia and can only be used with confidence in the exact same extremely specific circumstances. In order to find the desired high-level, more widely applicable knowledge, INTJ searches in all (or both) directions until it finds the boundaries to acheive closure. Its FiSe interface, when available, can assist by conducting experiments that test for boundaries by pushing the envelope more and more until the critical point is reached.
Optimistic logical resonance - Ni actively perceives concepts, having Te pick out the logical relationships among them. INTJ is good at finding the inner, logical workings of things, whether it is a machine, aspects of nature and the universe, and even people, with the help of unconscious ENFP.
INTJ excels at finding logically intelligent solutions, but its intense focus on idealism can make it prone to lack of consideration for what is practical in the externaverted(?) (E), concrete (S), and feeling (F) worlds if it is not balanced with its interface and unconscious.
ENFP unconscious - INTJ sees the logical working of people: People have various emotions and desires, and the strongest ones ultimately cause them to do what they do. Unconscious ENFP provides conscious INTJ with several things:
One is pessimistic insight into Fi things such as motivations. The often pessimistic insight can be seen in INTJ's very strong disapproval of doing illogical things (auxiliary Te, also pessimistic) for the sake of personal comfort. The unconcious Ne provides a preemptive weariness of the possibilty of this happening. This happens frequently when people believe things are true because they want to believe they are true because of the comfort of the idea this brings, or when people soften their conversation so much that it becomes mostly noise communication becomes ineffective because everyone is afraid of hurting one another's feelings.
Another is a positive inter-idea connection-establishing Ne that helps resonate so that Ni can do its logical pattern matching.
NTJ
Rules - NTJ strongly dislikes arbitrary rules that lack solid logical reasoning, not as much because it encroaches on freedom, as it is because it's disturbing that people follow the rules out of tradition or conformity without considering the value of the rules or better possible actions. It maddens NTJ to be expected to follow rules that it deems pointless.
Bluntness - Te often expresses its Ni perceptions quite bluntly and critically. It is concerned with the correctness of its ideas and expects others to be concerned with validity as well, and this strong focus on reasonable and logical ideas can make other factors seem less important and receive less attention. This can cause tension if the emotional impact of the idea or delivery of an idea is not considered, and it can cause shock if lack of reverence for traditional , such as the emotional impact it may have on people, the infractions of
INJ - Dominant Ni
Seeming Selflessness - INFJ and INTJ can see themselves as owning no real will, or having no will in what it wills. Dominant Ni's have a single optimum take on reality and cannot help but follow this perspective.
NJ - Ni
Conceptual Frameworks - Ni learns new ideas by incorporating them into conceptual frameworks, which are networks of interconnected ideas that can be viewed from any perspective. When the framework into which the idea is to be incorporated is incomplete, nonexistant, or orphaned from the meta-framework (the understanding into which all frameworks are integrated), the information in the idea may be stored until there is enough information to construct a framework with enough structure to allow for meaningful perspectives. The paired extraverted judging function are responsible for the objective correctness of the individual nodes within a network of ideas Ni's perception of the idea structures facilitates the simultaneous awareness of multiple perspectives of a concept, and when a framework is applied to a live case study, Ni provides concurrent awareness of multiple relevant variables.
Linearity - Because Ni is aware of all points of view and all possibilities of an issue, it strongly resists taking for granted that any one point of view or possibility is the only relevant or valid one in a given hypothetical situation unless all others are somehow directly ruled out. It traverses its multidimensional web of ideas or possibilities from node to node (that is, in a linear fashion) until it cannot be determined which branch is the correct one to follow. Hypothetical possibilities may be explored by traversing beyond the node of certainty, although Ni tends to remain a strong awareness of what is hypothetical and what is certain. If it is known that the number of possibilities is finite and are all incorporated into the relevant framework, then the next correct path may be determined through process of elimination of all but one possibilities. Ni tends to speak with certainty and absolutes because that's what it deals with internally.
Posessiveness of Ideas - NJs develop visionary ideas, and very much dislike when others take credit for coming up with the idea when in fact the NJ was the one to form it. Also, NJs highly dislike when others take their visionary ideas and pervert them into something less than the ideal. As a result, NJs may keep their ideas to themselves and establish them in the world only when they can be sure that nobody else will twist it into something worse. The posessiveness is due to the introverted attitude of Ni that makes it protective of its ideas.