The world level division in this book:

The following will use the universe (plus reality as a reference) to explain, and divide the world level into the following categories (Note: the destruction of the world refers to the destruction of life-sustaining stars and worlds):

1. Small World – Minor Chiliocosm

The size of a small world corresponds to at least a planetary level (Earth), and the minor chiliocosm corresponds to a complete star system (solar system), including non-living stars. The small world is the main world of the minor chiliocosm.

2. Great World – Major Chiliocosm

The size of a great world corresponds to at least a stellar level (the sun), and the major chiliocosm corresponds to a complete galaxy (the Milky Way), including many minor chiliocosms. The great world is the main world of the major chiliocosm.

Note: A minor chiliocosm or major chiliocosm has only one corresponding main world. The major chiliocosm governs many minor chiliocosms, and a collection of multiple major chiliocosms is called a boundary domain.

3. Universe

Literal meaning, it is the universe, which has different names in different worlds.

For example, in Desolate Era, it is called the Chaos World, and in Perfect World, it is called the Ancient World, Universe.

Note: The size of the Desolate Era Chaos World has many problems when calculated according to the original area data, so it is viewed according to other reference objects.

For example, the Three Realms speed is the limit of the Heavenly Dao (it is clearly stated to be the speed of light, in Ji Ning's swordsmanship beyond the limit of the Heavenly Dao under the Moonlit Pool).

Secondly, the Three Realms in Desolate Era also have different dimensions and time and space (for example, Bodhi's Crescent Moon Great World is drifting in different time and space).

Also, the Three Realms are divided into the Heaven, Earth, and Human Realms. The Three Thousand Great Worlds are only considered the Human Realm, and three thousand is still a virtual number. A Dao Ancestor who comprehends the Heavenly Dao can easily open up a Great World (Bodhi's Crescent Moon Great World is one).

There is also the problem of small worlds. There is a clear indication of the area of small worlds (Chapter 11, Volume 19, The Number One Swordsman of the Three Realms, writes that "the East Luan Realm is just a small world, only about tens of thousands of miles in radius, even smaller than Yanshan"), it can be seen that it is much larger than the Earth (tens of thousands of miles in radius now refers to a circle with a radius of tens of thousands of miles), and according to this data, a single commandery of the Great Xia Dynasty may have to stretch for tens of millions of miles (Yanshan is just the initial map, and the territory governed by any sect with a Yuanshen realm expert is larger than this).

For these reasons, this book regards the Desolate Era Chaos World as an independent universe.

4. Universe Territory

A territory composed of multiple universes, such as the Immortal Domain and Foreign Domain in Perfect World, the Eternal Territory in Desolate Era, and so on.

The Domain Boundary in Desolate Era is also considered to be at this level, with a large span. Anything that does not become a Chaos-level universe can only be considered a universe territory.

5. Chaos Universe/Multiverse

The former is composed of countless independent universes, and the development trajectories between each universe are independent of each other, all located in a chaos (the condition is the birth of a Chaos-level origin avenue, forming a chaotic space).

The latter is composed of parallel universes, with strong and weak ones. The trajectories of each universe are similar but also have many differences (directly refer to the Marvel Universe). In the process of evolution, the intensity can correspond to several levels from independent universes to chaotic universes.

6. Chaos Space/Endless Space

A special level, starting from the universe level, the main factor separating the heavens, which may contain a single universe, a universe territory, a chaos universe/multiverse, and so on.

7. The Myriad Realms of the Heavens

The lowest level that can exist is the universe (Chaos Space will appear starting from the universe level), that is, small worlds similar to the concept of a flat Earth will not appear alone in the heavens (even worlds without any extraordinary power exist in the universe, and the destruction and rebirth of small worlds refer to destruction and rebirth in the universe).

That is, all the characters that appear are in worlds that are at least complete single universes.