There are cliff-hanger endings, or clearly unfinished works, but I don't mind a bit of uncertainty at the edge of the story.
Compare The Wheel of Time to The Lord of the Rings.
At the end of LotR, it is over. Not only is the Dark Lord defeated forever, the elves, the wizards, all magic, and our two protagonists leave the world for the Undying Lands. We're told of the lives and deaths of all the other main characters. The world is finished. There are no stories left to tell.
At the end of WoT, it's just an ending. We're told of a great cycle to the universe, but half of it remains a mystery. Our protagonists are barely into their twenties, and the world has just been turned upside down. What will happen next? Anything, everything.
I don't mind the Zones of Thought universe being left open-ended, even if I would have preferred a little more. It's the sort of universe that shouldn't be wrapped up completely.
(I'm glad someone linked to this. I actually bought the annotated edition a while back and was reading it back in the Palm Pilot era, I think, but I've lost it and never quite finished it. So I'm happy to see it and have no qualms for myself about grabbing it.)
[0]: https://web.archive.org/web/20170215121054/http://www.norwes...
[1]: https://web.archive.org/web/20170104130412/http://www.norwes...
Best aliens ever.
The third book -- while not nearly as good as either Fire Upon The Deep or Deepness in the Sky -- had even more fascinating insights into the practical mechanics of a group mind with physical bodies. Like the fact that romance happens on two separate levels!
His first book Tatja Grimm's World was also about superintelligent people (or the whole rest of the planet except them was sub-intelligent, or something… it's not clear). That one is, hmm, not nearly as good as his later ones. So I think it's just as well he didn't try.
They're giant sentient spiders living in a 50's sitcom. What's not to like?
True Names was pretty great.
> In this form, it is possible to read the story without being bothered by the comments -- yet be able to see the comments on demand. (Because of production deadlines I have not seen the exact user interface for the Clarinet edition, and so some of this discussion may be slightly inconsistent with details of the final product.)
Did the final product not hold up, or is the page not presenting it right?
wget -mkx -e robots=off https://3e.org/vvannot/
This is Vinge's annotated copy of A Fire Upon the Deep. It has all his comments and discussion with editors and early readers. It provides an absolutely fascinating insight into his writing process and shows the depth of effort he put into making sure everything made sense.