In Charge of Heaven

After helping Ji Haotian raise his cultivation level to the first-level universe-building realm, the Goddess of Wushengshi stopped, and she smiled and said, "It's just right to be promoted to the first-level universe-building realm. Myself. Haotian, the imperial grandmother will give you another meeting gift."

After she finished speaking, she handed Ji Haotian a simple ancient purple-gold ring.

Ji Haotian looked at the ancient ring in his hand, and said in surprise, "The Ultimate Innate Creator? Eh? There is an Ultimate Pocket Universe inside. This is a rare ancient ring of Innate Pocket Universe!"

Pocket universe: "Pocket universe" is also the most typical example of an artificial universe. Higher civilizations can use special containers to preserve the space they create themselves, and put a large number of objects in this small space, and the container itself is a pocket universe. After those substances enter the pocket universe, they will be reduced to the microscopic scale, and that small space is a mini universe for those substances that enter the interior (this small space often contains a large volume of space, and after the external things enter, it is due to the space structure The volume is reduced due to the change of the space, not because the material itself is changed. The structure of the space is like a sponge, which can be compressed or stretched, and different types of spaces have different "density". If one in the "density" If an object with a volume of two in a space of one is put into a space with a "density" of two, then its volume will become one.

In the same way, the miniature space in the pocket universe that can accommodate a huge space is created by using this technology of compressing space. There is also a kind of artificial universe opposite to the pocket universe, which can use the technology of space stretching to enlarge objects, and the principle and phenomenon are opposite to the pocket universe).

Pocket universes can not only store large space stations that collect various military weapons, but also store planets and galaxies, and allow a large number of creatures to live in them. Pocket universes come in a variety of shapes, most of which are bubble-like translucent balls, and some creative craftsmen transform robots, furniture, toys, rings, weapons and even body parts into unique pocket universes. Of course, a large number of pocket universes can also be placed in a pocket universe, and the pocket universes in those pocket universes can still accommodate other pocket universes... This cycle is not infinite, because the space inside the pocket universe is open to new additions from the outside world. There is still a certain limit to the independent space of the space, and the overlapping of too many compressed spaces will cause the collapse of the pocket universe.

There are some civilizations with high technological level that can imitate the universe in which they live and create infinitely large artificial universes as parallel universes to other non-artificial universes that contain infinite space. The pocket universe containing infinite space inside is also a decoration that can be mass-produced casually for them (since the pocket universe containing infinite space has the most stable structure, so put an infinite number of pocket universes in the pocket universe, and then in this infinite Pocket universes are put into infinite pocket universes...this cycle can go on indefinitely without its own collapse).

There are also various ways to enter the pocket universe. Some pocket universes only need to be touched, and they will be sucked into the inner space and then transported to the designated place inside; there are also some pocket universes that require special portals to enter; however The easiest way to enter the pocket universe is to destroy the container. The inner world will either expand rapidly due to the loss of the barrier separating the two different spaces, engulfing the visitor, or collapse into a singularity, sucking the visitor in and taking the symbol. A miniature abyss of death.

Of course, if it is a pocket universe with a relatively stable structure, the world inside it will not expand or collapse rapidly due to the destruction of the container, and the micro space inside will form an energy bubble similar to a spherical wormhole, surrounded by a layer of light. The halo is completely wrapped in it. For different types of pocket universes, it is generally necessary to use different methods to get out of it. But if those civilizations that are too weak are imprisoned in the pocket universe by the life of a certain advanced civilization,

Then with their technological level, they simply cannot escape that terrifying and weird space cage. In a sense, the ecosphere can be regarded as the lowest-level pocket universe. By putting various substances and life in a spherical container, an independent ecological system is created. It's just that some ecological balls can use technology to put shrunken creatures and other substances into the interior of the ecological ball, while some ecological balls can't shrink anything (so generally they will be made very large, because it has to accommodate various The real size of the object, some huge biospheres can even hold entire galaxies).

Although nothing in the universe should be smaller than the Planck scale, since the spatial structure of the pocket universe is different from that of the large universe, the Planck scale inside it is also different from that of the large universe (if in a pocket universe If we put another pocket universe in the universe, then the Planck scale inside this small pocket universe will be even smaller), and the speed of light inside will be slower than that of the outside world (but for the life inside the pocket universe, the speed of light It is still about 300,000 kilometers per second, but because one meter in the pocket universe is much smaller than one meter outside, the speed of light is also much smaller than the speed of light outside). Just mastering space technology does not mean that you can create a pocket universe with perfect performance. In addition to space technology, you also need to master time technology (the combination of the two is time-space technology).

If you can freely control the speed of time in the pocket universe, then you can be regarded as having enough control over the small world you created. Not only space has "density", but time also has "density". If the “density” of the external time is one, and then the “time density” inside the pocket universe is adjusted to be one hundred, then one minute outside is equal to one hundred minutes inside. Using this technology, it is possible to use the pocket universe to carry out "time travel": the "time density" in the pocket universe is adjusted to a smaller number, so that after a hundred years in the outside world, the internal time has only passed a few Hour. Therefore, the owner of the pocket universe only needs to sleep in it, and then go to the outside world after waking up, and he will come to the future a hundred years later (this can also be regarded as achieving the effect of time travel). Although the speed of time passing in each area of ​​the macrocosm is different, the "time density" is essentially the same (not counting the pocket universe). If the "time density" inside the large universe is changed from one to two, then the speed of time passing in all regions will be doubled.

Both "spatial density" and "time density" have certain limits, and they will not break through the maximum and minimum values. If you can't master the technology of creating or erasing time and space out of thin air, then you can only construct the time and space in the pocket universe by means of "cutting" and "assembling" (for example, if a civilization does not have a high level of technology, then their It is necessary to cut a piece of space in the large universe first, and then compress it to a certain size and stuff it into the pocket universe, so as to achieve the effect of reducing the object, instead of directly increasing the "space density" out of thin air; it must be "stolen" from the large universe Only a certain scale of time can reduce the “time density” in the pocket universe). The earth, the solar system, the Milky Way, the total galaxy where human beings live...including the entire observable universe are all a small part of the pocket universe created by a certain advanced civilization. Only a very small number of beings in this pocket universe know the truth, and most of the civilizations in it who have explored the universe naively think that the universe is just a limited space, and they don't know that the place they live in is not a complete universe. This pocket universe where human beings live is also where the main plot of human stories takes place, so it is named "main universe".

The main universe is an experiment made by a certain advanced civilization for observation, and civilizations capable of creating such a pocket universe are very common in the big universe. The space in the main universe has been continuously increasing in the form of "big bang", and immeasurably many "space bubbles" appear out of thin air in the main universe and continue to expand, and then the distance between them is also getting longer, which is As a result, the internal space of the entire main universe is increasing (from an external perspective, the objects in the main universe are all getting smaller, and for the creatures in the main universe, it is the main universe itself that is getting bigger).

The "big bang" that most people refer to is just the birth process of one of the bubble-like spaces in a pocket universe in a certain large universe. Without the help of external forces and internal supernatural forces, the main universe will gradually age with the increase of entropy. Although as long as the natural development trend is followed, even the large universe will gradually become more disordered with the increase of entropy, but many advanced civilizations in the large universe can keep the pocket universe highly efficient for an extremely long time. In the state of order, only breaking the trend of entropy increase in the small area occupied by the pocket universe will not violate the overall trend of entropy increase in the whole big universe. By the same token, although many civilizations that have transcended the macrocosm can interfere with the natural laws of the macrocosm, they are still limited by their own level and cannot break through the rules of higher-level worlds (such as the world view at the level of the multiverse).

The neuron universe and the pocket universe are just two of the many types of artificial universes, and the above-mentioned giant life forms are "parallel universes" composed of artificial universes. A parallel universe system is a system composed of the same type of artificial universe, which is equivalent to a miniature-scale artificial multiverse, and a community composed of pocket universes can also be called a parallel universe system.