This reflections opines a theory about xxxJs in the MBTI system. Whether that J removes or rebuilds, it is having an impact on the outer world for the sake of the Matrix (to protect it or to disrupt it). This reflection is the last installment of the social interaction series (Part III) where I use the Covid vaccine to help understand homeostasis and the social order. MBTI focus: Fe and Ti. Other important discussion points: growth orientation vs fixed orientation.