I think that both Fi and Ti seek information/values that appeal to both ‘objective’ and ‘subjective’ senses- yet if a thing is true ‘objectively’, but not true ‘subjectively’; then it is not experienced as being true. I’m sort of seeing the question put forth in the op as: is the extent- to which the reciprocal of this applies- indicative of the difference between Fi and Ti? The reciprocal being: if a thing is true ‘subjectively’, but not true ‘objectively’; then it is not true. I think Fi users (in this forum, at least) have sort of implied they don’t gauge their values against others as a check and balance for what’s ‘true’. Maybe. Kind of.
I totally get what Peacebaby and Seymour have said (or at least, I believe I do)- that Fi also seeks a ‘right’ and ‘wrong’ that are universally/objectively true (according to the definition of ‘objective’ above, anyway). But T is at a clear advantage, in that it’s possible
to prove- more or less- how its information is incorrect/correct. While there may be morals/values that seem universal to all mankind, it’s infinitely harder to prove as Truth per se. It’s possible to prove Ti is incorrect with external means- since essentially, it isn’t about value judgments.
Is it possible to prove Fi wrong with external means- indisputably, I mean?
So, objective/subjective as it applies to Thinking/Feeling:
Objective: is provable in external world, irregardless of affect.
Subjective: is provable only in that the collective of different subjective experiences of ‘affect’ can agree to something being right or wrong.
In short: there are two different definitions of ‘objective’ and ‘subjective’ coming into play here, when saying Te is 2x as ‘objective’ and Fi is 2x as ‘subjective’.
Both Fi and Ti are at the affect of ‘subjective’ truth- according to the first definition of ‘subjective’ listed above (individual experiences information as ‘true’, regardless of whether or not other individuals do). AND both Ti and Fi are ultimately aimed at seeking a ‘truth’ that can be considered as such collectively. BUT Ti seeks ‘objective’ (according to 2nd definition) collective ‘truth’ while Fi ‘subjective’ (according to 2nd definition) collective ‘truth’.