While I know that there's tons of stuff out there on the differences between Ni and Ne I see it as more timing and negotiation over processing together rather than totally separate animals. For example, if I'm meeting with an Ne and the purpose is clear--planning a training day, let's say--I've done my Ni before the meeting, getting my ideas straight, etc. I'm set to brainstorm and can even play off the external world and ideas. If I had no warning, then it's like we're on two different speeds. they'll start brainstorming and I'll have to tell them, "Go ahead. I'm thinking over here and will join in in just a few minutes." So it isn't that I can't feed into the conversation, but that I need to be in my introverted world first to get my head wrapped around it.
Problems come when there's no understanding. Then the Nes will start pressing the Ni for input, often rapidly rephrasing their question or adding to their ideas, talking more, thinking that'll spur ideas for the Ni. Of course it does just the opposite, blocking the Ni from getting to the inner world and making those connections.
If there's mutual respect they can be powerful allies. The difficulty comes from reversing the attitudes and dominants. So INTJs plot and plan in the internal world, creating a great idea, and bring it to the external world with a rather finished aura. INTPs hear it, think about it and use their Ti to find the flaws, which they then voice through Ne in terms of ways to improve the INTJ's idea. Or, they might go straight to Ne and start adding to the idea/morphing it. The INTJ may a) resent it or b) start using Te to compare the critique to his/her schema for the world in which the idea is to work and be open to making the idea even better.What would be your opinion of the dynamic or interpersonal relationship between INTJ's and INTP's
If the INTP has the idea, chances are he/she grinds away at it in the internal world far longer than the INTJ did, not wanting to surface it to the external world until every point is decided. It'll sound often like a done deal when they finally voice it as well. The INTJ will usually start right in on flaws through Te.
Good news is if there is mutual respect, then the critiques will happen in the mode of a good debate, not an undermining of the others' ideas. One trick is letting each other in on ideas when they're still in the formation stage so it's easier to influence the direction of the plan without tearing apart a substantial amount of work the other has done. Another is to openly share the nonnegotiables in one's ideas and ask for input in specific places.How would they collaborate in a work environment? what way can they contribute collectively? are their interesting benefits of working towards a goal with these two types?