You know you're an NT when you are reading something in the news that you aren't familiar with and then, overwhelmed by the thought that you SHOULD know what this is, you end up on Wikipedia where you read the main article first and get lost in a plethora of clicking, backing up, clicking again on something else, backtracking again, clicking three times reading up on new, linked topics and suddenly you feel the need to start mapping out where you've been so you dont forget to backtrack to something you were interested in and meant to go back to....
Two hours later you close the browser window feeling like you just had sex.
You know you're an NT when your life can be explained by an xkcd comic:
"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray
INTP - People think that you know everything, but really you've just been bluffing the entire time, every second of the day you feel like an intellectual imposter and every social interaction is fraught with the possibility of being exposed as the fraud you richly deserve to be exposed as, so you minimise these occurrences at the expense of your already tenuous purchase on reality by keeping to yourself in a dimly lit room constantly rambling so you can't hear the one pure thought that runs through your mind on a continual loop that says, "You're nothing, you're unintelligent and unobservant and you should be spending your time packing groceries rather than aspiring to high hierarchical positions in a rich fantasy world of your choosing."
...but you finally calm down realizing that you couldn't care less about being honest in a world that's too dumb to recognize frauds.