Mbti is a kind of personality analysis, which has gradually evolved since the psychologist Jung put forward the personality theory in 192 1 year. There are four dimensions of mbti personality, and each dimension has two directions, totaling eight aspects. They are: extroversion (E) and introversion (I), which correspond to the external manifestations of our intuition, feeling (S) and intuition (N), which correspond to the types of information that we naturally pay attention to, thinking (T) and emotion (F), which dominate how we make decisions, judge (J) and perceive (P), and he affects the way we do things. Mcyt circle means my tubing blogger world circle.