Hey - sorry, I forgot about this due to the forum going down.
I don't think Ni necessarily has knowledge of an end-vision in view, more the intuition that it's realising one with the more momentum it acquires. I have one in that sense. It changes with new information, skills, circumstances, contacts, etc, but my feeling is that there's a non-arbitrary quality to it like a key theme, or underlying care, that's continuous. There's probably a tendency towards global/all-inclusive, but I try to avoid that.
What are your thoughts on Ni, do you identify as an Ni-user(/d) yourself?
You've read my blog I guess?
Occupation: nothing special. PhD: at the moment a cross-over in literature and computer-science/ narrative systems. I'm interested in comics, GPS/ location-based narratives, non-linear story-telling and probably the 'strange ideas' you mention.