Well, unfortunately, we don't know and probably never will know exactly how or why the Inverse Fire functions. I guess I just really like the idea that the Inverse Fire is the truth, just not the whole truth. And it isn't a lie, at least not in the sense that it isn't, in some capacity, a truth. The Inverse Fire, much like the idea of nihilism itself, is just a trap. The honey-pot that lures you in, of course, is that it is literally based on truth. It just isn't truth immutable.
Tangent. If we never get "fair" (and fair being some are answered) resolution to many of the plot lines, does that effect the overall series to you (anyone, please answer would like to know others thoughts, as wel)?
For me, it would. There are so many interesting mysteries throughout the series. It would be a shame if none of them were thought out, and don't have any conclusions. I think it would be lazy as a writer. And, Bakker doesn't strike me as a lazy writer. I have to assume he goes somewhere with them.