The four directions are called the universe, and the past and present are called the universe.

The universe is the general term for all things, the unity of time and space, and the unity composed of space, time, matter, and energy. There are four forces and three fields: four forces, gravitational force, electromagnetic force, strong nuclear force, weak and weak interaction, and three fields, electric field, magnetic field, gravitational field, three invisible and intangible. The charge is subjected to force in the electric field, the magnet is subjected to the force in the magnetic field, and the object is subjected to the force in the gravitational field.

Cosmic space is a kind of emptiness, a kind of nothingness. The matter in the universe is objectively in motion, the matter in the universe is objectively in motion, and time in the universe is the movement (distance) of matter. Cosmic matter moves in space, and the period of time that matter moves in space is called a period of time.

Therefore, for the universe, there is no time that objectively exists like matter. There is no time in the universe, and there is no time that exists in the true sense of the word.

Time in the universe is the distance of matter in the universe, and the movement of matter in the universe is called a period of time.

'Zero-dimensional space' is a point, an infinitesimal point, which does not occupy any space, and the point is a zero-dimensional space; when countless points are set and arranged, a line is formed, and a straight line is a one-dimensional space; countless lines constitute a plane, and a plane is a two-dimensional space; and countless planes are superimposed to form a three-dimensional space, that is, a three-dimensional space.

The three-dimensional world is stationary, when the three-dimensional world changes in the basis of time, the four-dimensional space is generated, if time is regarded as an axis, then any point on the axis is a three-dimensional space, that is to say, countless three-dimensional spaces are set according to the time axis, constituting a four-dimensional space.

In four-dimensional space, time proceeds linearly, and although the future is unpredictable, there is only one source and only one future, and no matter what will happen in the next second, there is only one future that is about to happen. Similarly, if we ignore the 3D properties, we will see that any 4D object behaves as a line segment on the timeline.

In fact, we are just like the ant that lived in three-dimensional space but only had the ability to perceive two-dimensional space; we only lived on one axis in a four-dimensional space, but our cognitive ability was only three-dimensional! However, in this four-dimensional space, there may not be only one timeline, but there may be several, or even countless timelines, and these timeaxes are called 'space-time'.

Li Tian, who is now in a three-dimensional space, but has the same cognitive ability as an ant: outside his life trajectory, he has discovered one or even more timelines, usually: we call space 'several dimensions', and space-time becomes 'several classics'. For example, when he discovers a timeline outside the trajectory of life, it should be called 'three meridian space-time', two are 'four-meridian space-time', and so on;

However, how could he, who had not yet graduated from junior high school, know this? He called the timeline 'realm'. Take the timeline of one's own life trajectory as the criterion: the timeline of one's life trajectory is: the Yuan realm, and the downward timeline is called: one, binary, ternary, ......; The upward timeline is called the first, second, and third realms......

The space between the timelines is called the 'warp realm'.

And at the point of the timeline where he is now, the space backward, that is, his past, is called the 'dimension', and the forward, that is, his future, is the 'dimension'.

The result of the development of things, which is extremely sensitive to the initial conditions and extremely unstable to the initial values, is the 'chaotic motion', also known as the 'butterfly effect'.

"Brother Tian, it's a big deal! Brother Tian, it's a big deal!"

Li Tian, who was wandering in the warp of time and space, developed a sound transmission array outside his enchantment in order to facilitate the notification of him.

Li Tian, who was indulging in the wonderful meandering realm, was startled by Shu Yuchuan's sudden shout, and said unhappily: "Your mother B! What are you doing?"

"Brother Tian, come out quickly! Hurry up! I don't know what it is, it is pressing from all directions! Now the boundary wall of the world of Ferris Chuan has been squeezed through......" Shu Yuchuan shouted incoherently.

As soon as Li Tian thought of it, he flashed out of the enchantment: "You say slowly: What happened?"

"I can't say the specific situation, the incident was originally discovered by Shi Jian, but fortunately he found it early, so we did some protective measures, otherwise this time the world of Ferris River would really be over!"

"Don't panic! What's the situation now?" Li Tian smiled and said, "You're so anxious now, I don't understand what's going on!"

Li Tian comforted Shu Yuchuan while releasing his magnetic sense. He habitually called Li San and the cognitive energy transmitted by them first, but found that he had been tried and tested many times before, only the time he was swallowed into his body by Shudang, and the cognitive energy that he couldn't receive was also broken this time. Li Tian, who felt that things were not simple, hurriedly swept the whole world roughly with magnetic sense. After eating the knowledge of exhaustion, he immediately withdrew his magnetic knowledge after understanding the basic situation of the matter.

In the past, the Heaven and Earth Tribulation, that is, the Quantitative Tribulation, was due to the irregularity of the 'circle' world, and the rotation of the days and days made this deviation more and more serious, and finally led to the world being divided into two, which was poured into a large number of cosmic winds, which then caused a cosmic storm, and then went to extinction, but this time it was completely different.

The boundary wall of the original Ferris River world has collapsed, and the endless darkness, the empty surface is soaring black gas is squeezing the outermost layer of the boundary wall, and Shi Jian and the others have already built more than a dozen equally solid boundary walls in a row behind this boundary wall, and they are still continuing to build new boundary walls.

Li Tian's magnetic sense, which had just passed through the black qi of the dark void, had a feeling of being swallowed up again. Li Tian continued to thicken his magnetic sense, and the black qi continued to devour the surface of his magnetic sense, but at the same time, a lot of information was transmitted to Li Tian: 'Materialize the void'. Even if the void is black, it is actually formless and insubstantial, but when Li Tian's magnetic sense comes into contact with the darkness, he obviously feels a kind of resistance, which is why the boundary wall of the Ferris River world will be squeezed through.

The vast flat universe has shrunk to the point where only Motianchuan is left. The hungry void was squeezed by the shrinking universe, and at the same time, they were also aware of the existence of the Ferris River World, and they were no longer interested in their own kind, and crowded towards the Sky River World from all directions, one after another, one stubble after another. The void that was originally empty was gradually materialized because of this.

After approaching the 'circle' infinitely, Li Tian's magnetic consciousness could already pass through the boundary wall and perceive the universe beyond the world. Just now, Li Tian was consuming a lot of consciousness energy, but he just sensed the surroundings of the world. The entire world of Ferris River has been suppressed by this materialized void, and even the 'Tai Halal Qi' consciousness that he has always been invincible cannot transmit in. If this continues, without outside support, the world of Ferris River will be squeezed out sooner or later.

"Everything is in the void! Is this what is called: 'Immeasurable Tribulation'?" Li Tian, who sensed everything, suddenly felt a kind of powerlessness, and his eyes also seemed a little empty.

"Brother Tian, Brother Tian, what's wrong with you?" After perceiving that Li Tian had already recovered his magnetic sense, he hurriedly asked.

Hearing Shu Yuchuan's inquiry, Li Tiandong's eyes had a hint of brilliance, looking at Weiyang, Lazy San and his two sisters, as well as their servants, who had already rushed over, and said weakly: "Things are not good! What we are facing now is likely to be an immeasurable calamity!"

"Immeasurable Tribulation?" Shu Yuchuan asked in shock, "Then, then, Brother Tian, are you a saint now?"

"Saint?" Li Tian sneered and said, "I didn't even know that a saint was a hairy thing, how could I be?"

Everyone heard some irritability from Li Tian's words, they didn't know, Li Tian still understood a little: when he was in elementary school, the geography teacher said: 'The life span of the sun that provides sunlight for their lives is limited, about 10 billion years. In the final stages of its existence, the helium in the Sun will be transformed into a heavy element, and the Sun's volume will begin to expand until it engulfs the Earth. After a 100 million year red giant phase, the Sun will suddenly collapse into a white dwarf. ’。

In the outside world, Shi Jian, Bo Chao, Zhirui, Hua Siyu, Kuzhi, Yushu, Chenguang, Makuda, Yongxin, Yan Wushuang, Liyuan, and the ancestors of the twelve civilizations of the Holy Yuan, and now the helmsman of the twelve groups of magnetic induction stacks, constantly reinforces the boundary walls of the world, and constantly sets up new boundary walls. Now there are thirteen groups of magnetic induction reactors, the Shijian magnetic induction reactor in the north has been swallowed, and the holy and Liyuan magnetic induction reactors in the south have also been swallowed. A large number of Motianchuan residents are moving closer to the center of the world.

"Open the void and let the residents of the outside world come in first, now only if everyone works together and unites as one, there may be a glimmer of life. Although Li Tian's status is now transcendent, his title for this Void Realm God Lord Lazy San has never changed.

Shu Yuchuan received Li Tian's instructions, quickly came to the outside world, organized everyone's orderly evacuation, and arranged for people above the megagram to densely set up boundary walls in the outside world, so as to slow down the squeezing and devouring of the materialized void.