Ok, first post and I haven't gotten my hands on all of Brandon's books so some of this may be off base. I skimmed through WoB and a few pages of this thread and have come up with a few ideas. Background info: From one of Brandons signings/speaking engagements: Q: Can you give me a hint in the easter egg in the map of Roshar? What particular skill do you need for it? Is it a different language or math related? A: It's not linguistics. It is math related. Let me remind you this is not going to be a mind blowing revelation. It is going to be a nifty thing. Someone actually got close at one of my signings. They noticed something. But it is a fun easter egg that will tell you more about the history of the world. From there I was skimming this thread and wandered across the idea of fractals, specifically Dragon curves. I saw someone reference them on Page 25 and Peter confirmed that someone on that page was getting close. Next, I understand we're working with two pretty important numbers: 10 & 16. I used both those numbers for the Dragon Curve (at 90 degrees) and generated two images.
10th Order - http://www.wolframalpha.com/input/?i=dragon+curve&a=*C.dragon+curve-_*Formula.dflt-&f2=10&f=DragonCurve.n_10&a=*FVarOpt.1-_**-.***DragonCurve.theta---.*--
16th Order - http://www.wolframalpha.com/input/?i=dragon+curve&a=*C.dragon+curve-_*Formula.dflt-&f2=16&f=DragonCurve.n_16&a=*FVarOpt.1-_**-.***DragonCurve.theta---.*--
Map of Roshar - http://img4.wikia.nocookie.net/__cb20130609204511/stormlightarchive/images/thumb/3/34/Map_roshar.jpg/1000px-Map_roshar.jpg
(I couldn't get the images to paste, so I attached the links. Sorry about that.)
I think that 16 is a little closer to the map of Roshar and the discrepancies in shapes can be accounted for by erosion and crem from highstorms.
Theories:
-The Shattering took place here/nearby. This fits the idea of 16 shards/16th order of the fractal. It's also a larger reveal then my second possibility.
-Cultivation has been on Roshar long enough that it has begun to influence the worlds development/patterns of the highstorms.
What do you think?