These are just some of my thoughts and feelings about what I believe the spirit world is like.
I always assumed that all knowledge was just automatically downloaded into our brain when we die or that we just ask for all knowledge and it's there.  Not at all, we have to want to seek it out and learn at our own pace, line upon line, precept upon precept. Sometimes people get side tracked and become complacent or happy were they are, not knowing there's anything better.
If you don't know about or get stuck in your search or run out of ideas to get to truth, someone else has to share it with you.
There aren't jobs assigned there only volunteers. Missionary work is not a job it's voluntary.
The ratio of good LDS people in the spirit world to non-LDS spirits is enormous.
Dave wasn't told to share the gospel with these people or told what to do with these people or why he was with these people.  His mind assumed exactly what he would have assumed if he were here in the mortal world. Just that all suicides go over there. He became one of theme. Didn't occur to him that he had some truth to share with them.
I also get the sense that there are several places there in the spirit world according to the level of truth they learn.  There's the place for those who don't know about the gospel and are just waiting, but don't know they're waiting for someone to come tell them. They can do pretty cool tricks to keep them amused or they can learn if they want to. Pretty much they do what they wanted to do here, with the same knowledge they had here.  Here on earth if you want to go to school, you go and learn what's available, same thing there. Sometimes they can figure out on their own the Gospel, then they advance slowly. So much easier if someone else share's it with them, just not enough to go around. Just like it is here.
Then there's the I guess you'd call it the main hub of the spirit world.  Ya I like that description, the hub. Where those who are more advanced in knowledge or who have the fullness of the gospel ie. temple endowed go and oversee the others. Not a higher up the ladder feeling, because when you go higher up a ladder you leave behind others. No this was a different feeling, like those in the main hub were working to help those still in the "wheel".
I believe that I am still sealed to David and that we are still one.  I believe that when Dave was taken to the "wheel" he thought he deserved to stay there. Someone from the "hub" noticed this and knew they couldn't tell Dave what to do, so they allowed me to come and do what I do best, tell Dave what to do (pretty tricky idea). But David wasn't wasting time there he learned some good information while in the wheel so it was all good.
I also believe that life there is pretty much like here.  New ideas are discovered, new technology, new advancements all the time. They advance like we do here.  Except their technology is geared toward eternal goals not money.
I've been thinking about this "cable" system Dave was hooking up to our home.  I got the sense that it was a new or greatly improved communication system. One way or two way, I don't know.  Definitely from here to there. Then I get thinking about temples and how prayers are a direct conduit to heavenly Father from there. Our homes are sometimes referred to as temples. So why not a direct conduit from our home as long as we don't "sever or cause interference" to the link by polluting our home with stuff that grieves the spirit.
Anyway just some thoughts to help my brain accept that the spirit world is real by comparing it to this mortal life.