C980 Floating Cloud Mountain
Boundless. Utterly boundless.
It's no surprise that a Middle Realm is said to be equivalent to a thousand smaller worlds.
Consider this: the space illuminated by the sun and moon over the Black Tortoise Continent is but a small world, and the two continents he had consumed were akin to the very framework of that small world.
He was well aware of the vastness of a small world