Cosmology of TDG

There are an innumerable amount of worlds in the universe. And they differ by their size, density of energy, and physical laws.

Every higher-level world is connected to approximately 3000 lower-level worlds. And through those connections, the energy flows from top to bottom. In other words, there is potentially an origin world or just origin where energy appears and flows down to the lower worlds. But no one can confirm it yet for Nie Li. The higher-level worlds are out of his reach now. Because Sage Emperor sealed the Draconic Ruins Realm from the network. That's why the level of energy in the Draconic Ruins Realm and its lower worlds are dropping.

And these worlds aren't just planets rotating around its star and the stars rotating around the galaxy center and so on. Instead, the worlds are isolated pocket spaces existing inside the Void.

The Void does not mean just a vacuum. It's really a void where nothing exists. Except for worlds, that are surrounded by borders consisting of chaos. That border is also called the Chaos Sea.

Some cultivators could travel through the Chaos Sea, but no one could travel through the void. Because the Void is nothingness. So no spaceships traveling in the cosmos. Because the cosmos doesn't exist. There may be some beings that could travel through the void, but they are not someone a bug like Nie Li could know about. The creator of the tiny world may have been such a person.

Worlds are connected to each other through void corridors. And portals allow traveling through them.

Worlds are usually naturally born (The only artificial realm known today is the Tiny World). No one knows how they come into being but some claim that the worlds appear from world seeds that float through the void. But the existence of the world seeds is also a hypothesis. And when the worlds appear their portal simply appears in the local network. They have their own physical laws and biosphere. Sometimes they have bizarre creatures, sometimes common races like humans, elves, and so on.

And when the world gets old or for some reason becomes uninhabitable they create a world core, a very rare treasure. It holds the original world's laws and a large part of its power so some people use them to create really impressive subsidiary worlds. But the number of the worlds in the network is limited and worlds live for a very long time. So the death of the world and the appearance of a new one is an extremely rare, once in a million years event.

And worlds come in different forms. There are even some 'flat' worlds. The Sun and Moon are just conventionality. And even if they exist they usually rotate around the world, like in the Tiny World.

Even if the sun and moon don't exist it wouldn't matter for the existence of the world. Because the world exists at the expense of the spiritual energy from the Origin. So the laws of physics are completely different.

But most worlds are in spherical form and have a sun and moon that rotates around them. And the world boundary that surrounds them.

There are three thousand low-level realms. The Tiny world, though a bit smaller than them, is at their level. Even if they are the lowest-level realms they are much larger than Earth, and the Draconic Ruins Realm, as an intermediate realm, is at least the size of Jupiter.

And three thousand intermediate worlds are connected to the higher level, currently unknown, world. Every realm in turn can have its unlimited number of subsidiary realms.