So I find a few new posts on MBTI vs Socionics, redefining Si etc. What I think is that the key to this problem is to understand introversion. In my opinion, Aushra understood it correctly. So here is some quotes from Jung's Psychological Types, Chapter 10.3.1 "General Description of the Types -> The Introverted Type -> The General Attitude of Consciousness".
Here Jung states that extraverted functions orients towards objects.Originally Posted by Jung
Here Jung is against describing introvesion as subjective, egocentric and egoistic.Originally Posted by Jung
Originally Posted by Jung
Here Jung talks about the subjective factor and emphasizes that it remains largely unchanged for all people since oldest times. So introverted elements are actually not that personal. As far as I'm concerned this is where common MBTI stereotypes fail to understand.Originally Posted by Jung
Originally Posted by Jung
Here Jung states that introverted elements are governed by the psychological structure which precedes the dev of the ego. He talks about the Self, which contains the unconcious. One of Jung's most significant discovery is the collective unconciousness. In my opinion this is highly related to introverted elements. Actually, Jung also talked about archetypes, primordial images and collective unconciousness in this section and he confirmed that the psychological structure is indeed that collective unconciousness:Originally Posted by Jung
Originally Posted by Jung
Archetype: the inborn manner of psychic apprehension of objects.Originally Posted by Jung
-------------------------------------------------------Originally Posted by Jung
So, Jung's Si is not about personal sensations. Isn't Se also personal? The key is that introverted elements are processing information from the perspective of collective unconsciousness while the extraverted elements focusing on the objects themselves.
In my opinion, Aushra understands Jung's ideas correctly and she redefines Jung's ideas in a more extraverted manner. This is understandable as she is an ILE while Jung is LII. Jung's definitions and descriptions are somewhat introversion-centric. Also, she studied economics in a country with superb mathematical education and she worked with many people who studied math or physics. So in my opinion, the Socionics definition contains two parts. The first one is a mathematical definition which is a 3-dimensional vector space spanned by basis {external/internal, object/field, dynamic/static}. The second one is accurate examples such as comfort (Si), force (Se), logic (Ti) etc. But the ultimate meaning of the definitions is that they help us to understand Jung.
Another good quote from Jung in the section "Introverted Feeling":
Jung described how Fi information conveys among different people. I think this sentence is very useful to understand introverted elements.Originally Posted by Jung
In my opinion, Socionics definitions are exactly the same as Jung since Aushra successfully captures what Jung tries to convey for introverted functions. However, she redefined it in an extraverted manner. She defines that introverted elements are about "fields", "relationships". This is exactly the same as Jung's "psychological structure", "collective uncounsciousness".