Notes

e inferior/ aspiration: live to perform. have a very limited amount of processing power for the physical world at first ( small swaths) . worried about failure when there's not a 100% knowable good result. very kind/ insecure about the experience they give and will need positive and honest gentle reactions so they build themselves up 👍 once they're overcome the insecurity they become highly skillful and usually extremely humble ( about the performance itself, not their child function ) They live moment to moment. Intj friend keeps trying to do brain shock therapy :( to improve their bad memory, that's how bad the si lack gets them at times.

ni hero: scheming lol , always putting together their future, trying to find the big picture that encapsulates all of their intuitive notions. Obsessed with the rules/ boundaries of their child function. Impulse + internal strong vision. Intj I know likes mythology/history/symbols in archeology, infj I know likes social psychology and social hierarchy ( see: enfp "the advocate" shadow ).
Sometimes I walk around with infj in the grocery store and she looks intensely at like one ice cream for a minute, then gets over it and gets stuck looking at like chicken nuggets down and down the isle xD (very fun). desire comes fast for them unconsciously.

both types: CSJ "walk around feeling like an empty shell / processor at times". Not good if society doesn't accept them for being that way ( se encouragement ) otherwise they'll start to dehumanize themselves. In my intj friend they claim to never enjoy things, then their fi child activates- they're completely unaware of their own experience of their intense feelings. ( which is bizarre to see ). This is in particularly good to know for me at least because intj friend's face is "emotionless" (thinking) 50% of the time and I was getting some serious uncanny valley before I knew. Also since both of their se/ si is so low, they have almost "2 brains/ computer screens" , one brain is their ni firing off 24/7 and the other brain which has less power is what is actually going on in real time reality. The closer they get to having both in equilibrium appears to ease their anxiety in their body that they forgot they had. Some people are surprised when ni comes to such scarily accurate (sometimes) bold claims, but it's their "second brain" nobody else particularly sees. Not sure if this is just my friends or all Ni hero. Usually this is also balanced by the parent function being in use, like rollo tomassi's subconscious esfp ( performer/ sharing attention ) combining with his Te parent on his show to be completely in the moment and using all of his resources during the xhour long performance. He's very self aware of who he is and it comes out in his language.

child function: I don't have a ton to say about the child function other then the "god complex" is how others perceive them- incredibly real in reality when it's immature. infj ti child developed at a young age, so she always thought she was more intelligent then the common people. (pride. also true but it's ti child) after later reflecting on this, she said "I can't believe anyone stuck around, I was such an arrogant prick back then". In reality it came off as what it was, childish xD so people didn't take it seriously. Ti child will say exactly what it thinks with no filter, and nobody or nothing can hide from it once the infj's ni is accurately perceiving you lol. infj friend really likes to be fed datas , she doesn't have strong values about the things she processes but will formulate a long string of fe ( this effect is bad because ethics ). Once she had to write a journal about who she was as a person and around paragraph 2 she started talking about ethics instead of herself. Enfp and infj can overshare literally everything when comfortable with the responsible parent, and childish logic system ( F - T seeking the real ) in golden pair this works out great. 👍

Intj is very different but similar. If you see in media the character nonchalantly claiming" I'm a mega genius!" person who is 5 seconds away from getting ti'd by an intp ( film pattern ) , fi child complex can appear like that to the outside.

Their ni is usually correct, their Te processes things ULTRA quick. So in that sense they really ARE a mega genius ( mastery of skills QUICK) , but this same person also initially lacks awareness of how things work in society ( si + fe ). both infj and intj at first can be black and white thinking ( especially if society rejects them) , but fi child in intj and istj can get very emotional about what they value. It's their tender-spot as well...when fi child trusts you it's like they are the most caring/ sympathetic person I've ever met in my life. My animal passed away and intj's fi child staring at me with huge watery eyes and shaking. Intjs believe that their fi child is their "true self" which is accurate. They can feel misunderstood when nobody can tell that this is who they are when other people are blaming them for being a wayfarer and looting all of their time and resources 🙃. They can feel misunderstood when they're legitamately putting their life and who they are on the line for others ( rollo tommasi ) and nobody is able to see that they are operating everything in judgement on their fi child. They're very interesting! The intj I know gets called a bad person a lot, but for someone who walks around feeling like a thought processor (te/ni) who's worried about performance for others 24/7 and has a tender heart to a fault, when they have fi - te it's not real malicious "arrogance." When they get treated with the dignity and appriciation of any other normal person, they become happy. ( obvious statement but I had to add it )
Fi child = initially coming off like inherent smugness, inflated self confidence and importance. Unaware that they come off like this, unaware that other people are NOT like this initially. How many times did I hear "you need therapy" told by them to people without self confidence. They're not entirely wrong about that but its coming from a place of fi child strong opinion lol.

I'm biased towards all of the child functions tho since that's where innocent humanity kind of exists. Which optimistic optimistic feeling would latch onto.

Parent function: always trying to protect the child. Fe parent getting in the way of Ni - Ti and making sure the infj both has a social life as well as uses the information to deliver their vision. jesus moment lol. infj friend used to have 57 "friends" in groups who betrayed her over time for their own gain. Similar to enfj problem of gathering cheap attention at first. I don't know much about fe parent. Eventually fi critic development + fe parent = mastery of social ideals. enfps and infj together are constantly evaluating and trying to spead the most true as possible principals

Te parent: the "mastery of skills" aka get shit done function for intj. Gathering of achievements. Not much to say because the intj I know is unhealthily over enabled and never developed this. They cut people out of their life that hurt their feelings even a little and now they got a nice little fi child enabling echo-chamber ( also me help ). They use it for making systematic excell spreadsheets and researching evidence for their values. Unfortunately they aren't falsifying ( researching both sides in order to know both sides ) anything yet. falsification = thought mastery. that's why entp / intj develops an intj especially and then the intj gives back satisfaction to entp for this in a healthy situation.