@BOSSExcellence
this is the beginning of my theory
There's a surprisingly vast catalog of theories dedicated to the physical world of Game Of Thrones, from its unknown regions to its unnamed planet's axial tilt and orbit. However, despite all the exciting "math" involved, none of those hold a glass candle to the fountain of gray matter erupting from one Reddit user: that the world of Game Of Thrones ...
Crazy as it sounds, the geographic evidence is there. The Misty Mountains line up with the Narrow Sea, from its sharp curve in the north to the perpendicular T at its south. What are the Misty Mountains doing underwater? Well, according to Tolkien's official gospel of Middle-Earth, The Silmarillion, the Misty Mountains were subsiding at a crazy rate, either due to magic or too many parties of adventurers singing Led Zeppelin songs all over them. The Silmarillion also describes the god-like Iluvatar creating entire seas and continents at will a mere century before the opening battle from The Fellowship Of The Ring, so when you're talking in terms of millennia, it's not too much of a stretch to infer that the face of Middle-Earth morphed into Westeros while its inhabitants were busy inventing incest.
Even the disparate regions of both worlds match up. The Shire is in the North, where the children of the forest (Hobbits?) dwell alongside face-having Weirwood trees (maybe the Ents finally went full tree). The "men of the west" remain in Westeros, Gondor is Dorne, while Rohan is in Essos, its riders having journeyed eastward and intermingled with the warlike Rhun to become the Dothraki. As for Mordor, it's right about where Valyria was until "the Doom" -- a mysterious, allegedly volcanic cataclysm which proponents of this theory insist was Mount Doom erupting one last time, probably launching smelted Gollum bits clear out into space.
Of course, eagle-eyed fans examining fiction's most murderous musical chair have also spotted swords from Kingdom of Heaven, a historical drama that stars Legolas as a 12th-century crusader. So maybe they're all time travelers.
Saved this from a cracked Article in May...