I have given my own views already. You however believe they come from Ne hence I just agreed to disagree.
Honestly, I don't see much point in arguing whether his ideas were derived from self-reflection or generated from observations from his environment. Like I said, it's not a debate of Ni or Ne. Those sort of arguments have existed for so long even on INFPg, and given that it's still confused today, it's the sort of thing that goes on forever.
From what I've read of Jung's works his natural preference seems to be for extroverted intuition. His theories of active imagination are pretty much testament to this. I tend to believe that Jung was INTP (Ne). Not INTJ.
His intuition was clearly extraverted. Its obvious when you study his work and look at where/how he came up with majority of his ideas.
I agree with this.
Jung communicates strongly with his iNtuition. This is seen in his writings, his interviews, and his transcripts with patients. He uses global language, metaphors, and readily shares ideas and theories. That's Ne in action.
Individuals tend to communicate to the outside world with whatever functions are extraverted. Jung did not communicate with Te/Se as INTJs do, but with Ne/Fe. His communicated thoughts were highly associative and intertextual, not particularly logical or sequential or concerned with the immediate surroundings.
This is a discussion of the differences between Ne and Ni. Jung was clearly a long-term system builder, a general trend that is associated with Ni. But that doesn't rule out Ne. The bracketed information is my own clarification:
Ne is not a long-term system builder [as opposed to Ni]. This is a true statement. In fact, I believe there are only 4 types that are long-term system builders that use Ne. Those are ENTPs, INTPs, ENFPs, and INFPs [each to a different degree, see below]. And to use the term “build†is somewhat a misnomer. Often an Ne/Ji user will stumble upon a long-term system or simply have an idea once the Ne/Ji has gathered enough information. In many ways, the long-term systems that Ne/Ji users might form can be superior to that of an Ni user, but most of the time they will not. The breadth of knowledge that an Ne user will gather brings new perspective to the systems being built, and it may present an angle that Ni would not have seen as relevant. However, this is somewhat rare. However, in terms of systems that already exist, Ne will almost always see what Ni does not.
Why Ne > Si (INTP, ENTP, INFP, and ENFP) can be long-term system builders and not Si > Ne (ISTJ, ISFJ, and ESFJ and ESTJ) is an irrelevant question and a generalization. However this quote shows that particular relationships between functions leads to different sorts of expressions.
ENTP and ENFP types seem to keep their Ne mostly unadulterated. However, when Ne and Si are developed close together (as in next-door auxiliary and tertiary functions) that's where the water gets cloudy and Ne loses its already indistinct shape. In relation to the Ne/Ni confusion, this applies to INFP and INTP types.
Ne in INFP and INTP could be confused with Ni because of its close development with Si. It seems when Ne and Si are developed closely (and iNtution is more pronounced) they seem to blend into a faux kind of Ni. The kind of Ni that would show up in individuals who have Ni as an unadulterated function (INFJs and INTJs). That's probably why INFPs and INTJs are deeply interested in dreams, symbols, archetypes, and the unconscious - typically Ni qualities.
These are my own thoughts, anyway. If any of this doesn't make sense I can clarify my opinion further.