My ENFJ friend displayed how his was used when he "just knew" that a particular car we saw was fleeing from the cops discretely. We had to look around to see the cop car in the parking lot, another car that was distracting that car, and other clues that would lead to that conclusion for him. He's also able to make snap-judgments of people that are often right.. I'm in absolute awe of his abilities in that respect. It's apparent that his Ni is being used, but backing Fe rather than Te as mine does.. his insights tend to be more about social cues and potential of people.
With regard to time-based potential, I'm talking forseeing something like years ahead regarding how things will unfold. For me, it can be about planning systems for some future gain; for him, it can be about who's going to be a worthwhile friend in the future.