Expat,
By stable I meant it not as concretely as you're describing (changing jobs, locations, etc) - and if I may add, it seems that your approach is more of a sensing approach (very concrete interpretations of metaphors). When I say stable, I'm talking about in the sense of a second by second, constant way of living and breathing. It fits with Jung's description of "Introverted Sensing" - which I myself relate to as well. The feel I get from you is like a calm ocean, free of tempests. Yes this is a subjective perception, but I don't doubt that if you asked enough people you know, they'd pick up a similar feel.
http://psychclassics.yorku.ca/Jung/types.htm
I can understand why you don't place credence in what you deem "circular thinking", because you don't seem to share the same perceptions. However it'd be nice if you could entertain the possibility that Socionics phenomenon exist on a far deeper level that many people think it is. For example many people relate things like morality, good values, etc to Fi, which is total bullshit. With an Fi PoLR, I am by no means an immoral person, and have very good values, and many people who have Fi as a strong function and know me would agree, (you yourself who are definitely capable of picking up Fi in people seem to think I'm ok too
) so obviously this typical line of thinking by being overly concrete is inconsistent, and doesn't conform to reality. Which means that we have to look deeper. The functions represent HOW a person does what they do, not what they do. I am moral, but my morality may be expressed differently from someone of a different quadra (because of my NeTiSiFe), as opposed to say (TeNiSeFi). The functions are abstract bases. To think of them as anything other than abstract underpinnings will lead to inconsistent attribution, and of course mistypings.
Hopefully I will figure out a way to convey what I'm seeing in a way that's understandable