My question concerns type frequency. Why do we have so many SJ and SPs in the world relative to NT and NF?
The question of why there are so many SPs and SJs compared to NFs and NTs is not an easy or obvious one to answer. Research tells us that the frequencies are what they are, but research does not speak to why. Since there is a 70/30 split between Sensors and iNtuitives in the general population, we should expect there to be fewer NFs and NTs as well, of course, but this expected distribution does not speak the essence of your “why” question. The only response I have—and this is my personal thought and feeling on the matter, not reflective of any data or research—is that as a species, we are better off having a majority who primarily deal with the world as it IS (Sensing) and with a minority who engage with the world primarily through engaging in future possibilities (N). A sociological/evolutionary explanation is that we have evolved in a way that best serves the continuation of us as a human system. About a third of the collective is practical, naturally seeks to structure, order, perp
