maybe being technically idiotic

debunking the myths! mbti is not:

• strictly the four letters that show up in your personality typing.
• a gimmicky definition applicable to every person or character in existence
• incorrect

now that we've got that out of the way.

mbti is a theory of psychology and cognitive process (not scientifically proven - hence the word "theory") based on the jungian thought that the four core functions of the brain are Sensing, Intuition, Thinking, and Feeling; with certain types of each and certain combinations of each, we result in eight functions and sixteen total basic personality types, thanks to the myers-briggs mother-daughter team.

the certain types of any core function are Introverted and Extroverted; so, two types of four functions, and then the math. every personality type has a stack of four particular functions, each function being either Sensing, Intuition, Thinking, and Feeling, with no overlap. at the same time, of these four functions, two are extroverted and two are introverted. all functions have to balance the other. every personality type leads with two particular functions; the other two are Tertiary and Inferior.

Sensing and Intuition are considered the Perception functions, as they have to do with our interaction with the seemingly impersonal: the world. on the other hand, Thinking and Feeling are the Judging functions, as they are more focused on the self, personal, and concrete. Judging/Perceiving, however, is not determined by the function that the personality leads with (their Dominant function); but rather, of their two main functions, which one is the Extroverted one. that is what decides whether a person is a Judger (if their Extroverted function is Judging) or a Perceiver (Extroverted Perceiving.)

Introverted functions are considered the "irrational" functions, as they rely on solely internal processes and humans are always flawed. thus, one Introverted Thinker's perception of "logic" will never be the same as another's, because their brain's pattern of logic differs, even if they may be the same personality type. it is not to say that Introverted functions are individually unreliable or biased, but rather that Introversion draws energy only from the self, which is heavily influenced by surroundings, background, knowledge, and pure brain processes, and cannot ever be viewed objectively: only subjectively.

on the other hand, Extroverted Functions are the "rational" ones, because they interact with the world openly. where Introverted Functions live mainly in the brain, and speaking in a vacuum, Extroversion sees the world, and objectively, and draws energy from it without prejudice.

and a brief rundown of each function:

Fi: Introverted Feeling. personal desires, feelings, and values.
Fe: Extroverted Feeling. awareness and reactive to others.
Ti: Introverted Thinking. internal logic, patterns, and analyses.
Te: Extroverted Thinking. execution, the action of ordering and structure outside the self
Si: Introverted Sensing. establishing & reactive & immediate structure in response to or in relation with concrete practicality, usually with naturalized effectiveness
Se: Extroverted Sensing. experience and action as they exist within a vacuum, external interaction with an uncontrollable world
Ni: Introverted Intuition. mental abstraction and discovery and understanding, usually in response to or relation to but divisively separate from the external world and only internally contained without necessary reason or practicality, just internal establishment
Ne: Extroverted Intuition. fascination, possibilities, ideas as they exist on their own

obviously, in different parts of the stack they'll mean different things. but that's for later posts...