system
A chat on 4chan
human
I understand how this psyop pseudo-Jung system works now. It's a bootleg MBTI test, but trait oriented like BIG 5. 

You have a primitive personality profile, that's the real you since you were a baby. This profile is based on biological factors. 

E/I is mental processing. E personalities are basically Sensors in MBTI. I personalities are basically Intuitives in MBTI.

R/F is methods of learning. R personalities are basically Thinkers in MBTI. F personalities are basically Feelers in MBTI. 

A/U ain't like MBTI. It's basically how fake you can be socially. A personalities can wear a social mask well and adapt to social situations. U personalities stick to their guns, at the expense of looking autistic. 

That explains the primitive personality, of which I am a IRA. 

The basic personality is based on whether you compensate for your weaknesses or give no fucks and stick to your primitive state. 

u means you didn't compensate.
c means you compensated. 

If I compensated for all my weaknesses, I'd be a e*f*u* IRA subtype personality as an example. 

The asterisk is placed on any are you compensated.

My basically type is e*ra. Basically, I went from self centered high functioning autist, to sociopathic self centered high functioning autist.
gpt
E/I is related to Jung extraversion/introversion and intuition/sensing
R/F is related to Jung intuition/sensing, thinking/feeling and perceiving/judging
A/U is related to thinking/feeling