Thoughts about 4D Fi, or Fi Base.
EDIT: Just to clarify that Socionics Fi is different than MBTI Cognitive Function Fi, and to clarify what Fi is...
Personal Note: “friend or enemy,” and “good will or ill will,” are not the same as “for or against” in the sense that people are either one way or another, black and white; such is an unhealthy way of thinking according to the professional field of psychology. That would be similar to narcissistic “splitting,” which is where they perceive people as one way or the other only, thus commencing with valuing/devaluing. Instead, this should be interpreted as an assessment of another's disposition toward themselves/others, and an assessment of whether they are a threat. “What is this person's character like? Is this person going to deceive me? Do they admit when they're wrong, thus taking their share of responsibility and engaging in a healthy 2-way-street relationship?” The existence of ethics such as these within another person are analyzed, assessed, based upon a person's general words and actions. It is through these that a person is able to trace behaviors back to unspoken core beliefs, attitudes, values, ethical standards, and dispositions of another individual. It's basically “reading between the lines” and psychologically evaluating others or “sizing them up,” thereby determining whether there is potential for a connection or an aversion to the individual they assess.
Clarification: This thread is intended to be about Fi in general, especially in 4D and valued (not demonstrative).
If it derails with other dimensionality a bit here and there, that's fine.