The thing I wonder the most about Erfworld is why everyone is so ignorant of Erf geography.
Hypothetical Model of How Erfworld Works:
1. The Magic Kingdom consists of a single hex - or, to put it another way, units can move from any point in the Kingdom to any other point without expending move.
2. Portal Park links all capital portals.
3. All sides have a capital city, and all capital cities have a portal.
If the above are correct, then why are most Erf sides not apparently a lot more enlightened about their geography? Casters of all sides can interact with one another in the Kingdom, and sides without casters are likely to hire them. You would think that it wouldn't be too difficult for the Magic Kingdom to eventually build up a fairly complete picture of all of the explored Erfworld through word of mouth and trade of information.
Possible Reasons No One Seems to Know Much about Erf Geography
1. Revealing map information violates MK neutrality. (Difficult to enforce.)
2. Revealing map information is considered Disloyal by the world rules, or extremely risky. Even allies do not share maps, and map information is destroyed or unrecoverable when a side falls. Given the kinds of things sides are willing to do for one another in Book 2, though, one wonders.
3. They are well-informed, they just don't talk about it enough for us to have seen a good map of the area. Though one wonders about how most sides are pretty out of their depth here - the Archon says Charlie has significantly better geographical information than most sides.
4. Any of the premises of the hypothetical model above are false (the MK is itself large and not fully explored; there are multiple Portal Parks; not all sides have portals, etc.). Though it seems somewhat reasonable to take them as true for now.
5. Most or all sides originated in the same area: dimishing schmuckers means there was never much incentive to explore beyond a certain range and/or when sides colonizing remote areas fell, their map info was lost and the areas were slow to be re-explored. Of course in theory a barbarian warlord could pop anywhere and a capital site could be found anywhere, but Fate may bias the distribution in favor of a certain central area or point.
6. Mapmaking technology is extremely limited. (Probably not true. If units can write, they can probably draw. At worst, there's probably a lot of cheap map-like magic items crafted by Lookamancers, Findamancers, Foolamancers, or Signamancers going around. And I feel like the RCC had a map at some point?)
"If you leave out important things or events that you know about, the story is strengthened. If you leave or skip something because you do not know it, the story will be worthless." - Hemingway