So this will be a bit, fun.

Basically what if the purpose of Ni is to have a memory of history. Ni usually referens to how things came to be, the Why. Time right. It is how object travel with time and change and evolve. What if Ni element is how to systematically store the sensory world in a frame that help us understand how things come to be. To correct and understand why things came to be and therefor understand what can be changed without disrupting what is the essence of it.