There are two people:
Person 1 is interested in psychology, metaphysics and politics. She tends to jump from one interest to the next almost simultaneously. She is interested in all of them at the same time and can go back and forth exploring them together or taking turns between them.
Person 2 is interested in psychology, metaphysics and politics. He obsessively focuses on one interest at a time, completely neglecting the others until he feels he has exhausted it for the time-being and moves on to another interest, like a cycle. This lasts at least several days. His obsession is so consuming that he can't even imagine what he ever found interesting about the other subjects while his current obsession lasts. The cycle continues.
What does that tell you about the two people's preference for Ne vs Ni?