Board Thread:Lore Discussion/@comment-71.58.163.238-20130703034923/@comment-13446185-20131230124930

AngryEnclaveSoldier wrote: No one can know how big Tamriel really is. For example, the minds of mortals on Nirn make the infinite Planes of the Aedra look like Planets because they can't comprehend infinity. The moons were Lorkhans dead body, but some people now worship them as two different gods. This makes them infinite too, but to a mortal, they appear to be spheres.

Nirn could be a subject to this perception too. Since Nirn is a Frankenstein-like planet consisting out of many divine parts which form the earthbones and since Lorkhans Heart gave Nirn it's 'divine spark', Nirn could also be infinite. To the mortal mind, it appears finite. Tamriel could also be 'infinite' but be, through mortal belief, finite. Nirn was born out of Lorkhan's idea of limitation, and is most likely not infinite. In fact the entirety of Mundus and Oblivion are probably not unlimited as they are cut off from the Aetherius, the realm of Anui-El. The only thing within Mundus that is unlimited is magicka due to the holes created by the Magnus and the Magna Ge that flow limitless streams of magicka directly from Aetherius.