Galaxy Scale

Question: Just how BIG is the Galaxy Universe? (The world in which the Legendary Mechanic is set)

Answer: VERY!!!

Yes, there are A Grade Superpowers who can literally destroy a planet, and Beyond Grade As who can live for thousands of years and theoretically destroy a Star Zone, but the world of Galaxy is supermassive.

## Comparative (Relative) Scale

I'll just use our current universe as the comparison (the world of Galaxy occurs in a physical universe much like ours, except powers and magic... and players).

### Observable Universe

(photo from Wikipedia: Observable Universe )

The image shows our universe in an artistic rendition at logarithmic scale, larger inwards, shrinking scale outwards, with the earth visible as the blue planet in the near-middle (for scale).￼

## Civilization Size

### Planetary/Surface:

Population: > 1 billion.

Scale: 1 planet. A civilization of this scale much bigger than the six nations of Planet Aquamarine. Secular civilizations of the size of the six nations weren't given a proper classification. This is, on the Kardashev scale, a Type I civilization.

### Star Zone: Solar System

Population: > 10billion.

Scale: > 2 planets, > 1 star zone.

A star zone is the equivalent of the Solar System by which is a star system. The official translation translates the classification: galaxy into star system. Again, a star zone is equivalent to a star system like our Solar System. This could be a Type II civilization on the Kardashev scale.

### Star System: Glaxy

A the novel is the equivalent to a galaxy. It is not like the Solar System. It was noted at chapter 833 that the minimum level a civilization should be in order to attend the Shattered Star Ring Civilization Conference, which is a conference attended by the civilizations of the Star Field: Shattered Star Ring. This may be the lowest of a Type III civilization.

Note: "Our Galaxy has about 150 globular clusters, some of which may have been captured from small galaxies disrupted by the Milky Way, as seems to be the case for the globular cluster M79. Some galaxies are much richer in globulars: the giant elliptical galaxy M87 contains over a thousand."

### Star Cluster:

Scale: 10%-30% of a Star Field;

Scale = Multiple may be present in a single Star Field. As stated in Chapter 833 of the novel, there were a total of seven Star Cluster leveled civilizations within the Star Field: Shattered Star Ring. A Star Cluster's equivalent is a Galaxy Cluster.

### Star Field:

There are no Star Field leveled civilizations within the novel. This might be because of the ongoing suppression from the three Universal Civilizations to the various Star Cluster civilizations. This means that there is an entire level between the Star Cluster Civilizations and the Universal Civilizations. It can be imagined that the gap between the three Universal Civilizations and the Star Cluster civilizations is enormous.

Theoretically, they would consist of most of a single Star Field. A Star Field's equivalent in reality is a Galaxy Supercluster. There are around a dozen or so galaxy clusters in a single supercluster.

A supercluster is a large group of smaller galaxy clusters or galaxy groups; it is among the largest known structures of the universe.

"Superclusters form massive structures of galaxies, called "filaments", "supercluster complexes", "walls" or "sheets" that may span between several hundred million light-years to 10 billion light-years, covering more than 5% of the observable universe. These are the largest structures known to date."

### Universal:

There are five known Universal Civilizations (cosmos grade, in the machine translation) in the current iteration of the universe. They are the Federation of Light, the Crimson Dynasty, the Arcane Church, of which make up what is known as the three Universal Civilizations, the Kama Republic, and the World Tree Civilization. There can be enormous differences in the strength of Universal Civilizations, as the perished Karma Republic was easily suppressed and conquered by the World Tree Civilization. More importantly, the three remaining Universal Civilizations had to work together to combat the World Tree Civilization. The result of the battle is unclear and is currently progressing in the machine translation.

The scale of these Universal Civilizations, as previously mentioned, varies. They could range from anywhere from occupying two to dozens of Star Fields (Galaxy Superclusters).

The observable universe is (currently) 9.3 Gigalightyears (1,000,000,000 lightyears), and has a total mass of 1.5 x 10^53 Kg.

A Type IV civilization was thought to be one who controls a universe. Quite a big gap, from couple galaxies to an entire universe. I believe a civilization that controls an observable universe is qualified to be categorized as a type IV civilization, if barely. A type V civilization controls a collection of universes. This concept could be touched upon in the Legendary Mechanic, as it was revealed to Han Xiao at chapter 1199 that the universe follows the Big Bounce Theory, which suggests an oscillatory universe interpretation of the Big Bang, where the first cosmological event was the result of the collapse of a previous universe. Meaning, repeating universes.

Notes:

There are at least 2 trillion galaxies in the observable universe, which in the Legendary Mechanic, consists of the three Universal Civilizations.

2. Because "observable universe" is used as the measure for cosmos grade civilization and that an observable universe has a spherical volume centered on the observer, in a sufficiently large universe (eg Galaxy), it is possible for multiple "observable universes" to coexist without overlapping (eg World Tree, Three Civilizations, Kama Republic).

Two Universal Civilizations can exist independently if light doesn't travel between the two Civilizations within their lifespans (the rise and fall of a Universal Civilization occurs in less time than light travels the distance between it and another Universal Civilization).

Interactions/discovery can also precede trans-cosmic light observation, whereby Faster-than-Light technology allows two universal grade civilizations to contact/interact before the light has had sufficient time to traverse the gap between them.