The way idolatrie talks about it = my own thought process (except I actually do narrate things in my head sometimes heh). It's why I always say that Fi and Ti are so similar. I think I get the Ti way of thinking, because it's how I think, just not so categorical/defined/solid. I don't think in math or rules or strict frameworks, but I am always noticing whether or not something fits/makes sense/ties together in a way that I see as similar to how Ti is described.
Recently, I was commenting to Expat about how Andrew Jackson bothered me with his politics, because they didn't fit together, his views were so disconnected from each other. I couldn't make sense of them, to get a complete view. He said that it was Jackson's weak Ti, and common among SEEs (which is what he types Jackson as). So, creative Fi in my guess does not work the way leading Fi does, to bring things together (ENFps also seem to have a tendency to be disjointed in their views, imo).
It makes me think of a time that Minde described her own thought processes, and nearly everyone said, "Ti" which I thought weird, because she and I, imo, are both easily leading Fi. Also, the comment Ritella made about mystic and herself on the wiki, how the way they communicated was "the same language" both using Fi and Ti, makes a person think. Think what? I don't know yet, I'm still sorting that out