I think this has a lot to do with age and experience or the type of situation that we are processing. Ni is a function that develops and becomes more efficient with the more knowledge it has, since it is a pattern seeking 'inside the box' type of thing. For me, normal everyday thing such as expressions, emotional states, and motivations of other people come almost instantaneously (in conjunction with Fe of course), I can sense their emotional reasoning/or lack there of pretty much right away just due to having experience being around a lot of people.Fellow INFJs- question. How efficient is your Ni process? Meaning, do you reach conclusions quickly and easily or does it take time and effort/ lots of thinking to get to something you can (almost?) blindly trust?