yeah
as soon as i read that, i was like " wha ? "
but.....
subjective thinking could be equated to feeling-its more mystical than factual like Te
Fi is like saying subjective-subjectivity
thus, interchangeable
just why it was not said about Fe and Te, i will never know
well, that is until Ni comes out of nowhere wearing nothing but a cabana boy T-shirt and tells me
Thinking is generally condsidered "objective", based on logic and facts, while Feeling is considered subjective "values".
"extraverted attitudes" (outside use) is also considered "objective", while introverted attitudes are considered subjective, because they are taking place within the person. (For perception, the attitude is the "source" it is taken from, and for judgment, it is the "realm" it is used in).
Sensing (concrete perception) is also considered more "objective", while iNtuiting (abstract) is considered subjective, because it involves the person drawing from patterns and stuff.
I then came up with an idea of shorthanding the processes with "o" for "objective" and "u" for "subjective".
Se objective data from objective source O/O
Si objective data from subjective source O/U
Ne subjective data from objective source U/O
Ni subjective data from subjective source U/U
Te objective judgment in objective realm o/o
Ti objective judgment in subjective realm o/u
Fe subjective judgment in objective realm u/o
Fi subjective judgment in subjective realm u/u