In addition to the Blue Star Civilization, there are also eyes from other interstellar civilizations, which are staring at this two-way foil from afar.

Outside the solar system.

In the outermost interstellar space of the Oort Nebula, about a light-year away from the main-sequence star of the Sun; A spaceship in the shape of a triangle was quietly docked in this silent dark void.

In interstellar space, there are various sources of gravity. In the vast region bounded by the Oort Nebula and with a radius of more than a light year, the largest source of gravity is undoubtedly the Sun; All objects in this area must be centrifugal around the sun, otherwise they will fall in the direction of the sun under the action of gravity.

However, the relative velocity of the triangular spacecraft to the Sun is almost zero; It's as if an invisible force is holding it up, making it unaffected by the sun's gravity.

Inside the huge spaceship, there are only two figures.

The appearance and body shape of these two figures are not significantly different from those of the Blue Star humans; However, they are from far away from the galaxy, and their homeland would be called ...... if translated in the language of the Blue Star The Small Magellanic System.

It is about 200,000 light-years away from the Milky Way.

At this time, in the cockpit of the spacecraft, the two interstellar visitors were sipping the wine of their hometown, while staring at the two-way foil drifting in the solar system through the spacecraft screen. Outside the window in front of them, the sun could be seen; Just a light-year's distance, combined with the Oort Nebula, makes the sun look small and dim.

As for the blue stars in the solar system...... This planet, which is home to billions of humans, is so small that it is impossible to see with the naked eye at a distance of one light year.

"What a weak civilization!" The slightly chubby alien couldn't help but sigh, "Ye Fang Zhou, you said yes, right?" ”

"yes, Dome Map." Ye Fangzhou, who was emaciated, said lightly, "A very primitive civilization has just ignited the flame of nuclear fusion and entered the threshold of a level 1 civilization!" It is still far from mastering the basic knowledge of antimatter energy and anti-gravity technology, let alone advanced knowledge such as space dimension theory! ”

"But their luck is good, the technology tree is more comprehensive!" "Their chip technology and energy technology just meet the minimum requirements for building a virtual world; Otherwise, even if we provide some technical help, or even give them a 'virtual world core', they will not be able to escape the blow of dimensionality reduction. And now, they have at least the opportunity to complete the two-dimensional transformation of civilization and let civilization continue in the two-dimensional world! ”

"Although from now on, this weak Blue Star civilization can only live in a small virtual world; But to be able to keep civilization alive is already lucky! Ye Fang Zhou's eyes were indifferent, as if he didn't have the slightest emotion, "In this increasingly chaotic universe, a civilization that is too weak is not qualified to survive!" Even, even a whole galaxy composed of hundreds or hundreds of billions of stars and tens of thousands of interstellar civilizations is not qualified to continue to exist if it is not strong enough! This is a cold, dark, chaotic universe! ”

At this point, there was a sudden silence in the ship's cabin.

After a long time, the Qionghaotu let out a long sigh: "The Milky Way is a huge and developed galaxy, with a diameter of more than 100,000 light years, more than 200 billion stars, and more than 200,000 civilizations; Although many areas have been reduced to a two-dimensional plane, at least this galaxy still exists in three-dimensional space! And our home Magellanic system...... But the entire galaxy has been reduced to a two-dimensional plane, and it no longer exists in three-dimensional space! ”

Yes!

The home galaxy of the Night Universe and the Celestial Atlas is completely gone.

The diameter of the Small Magellanic Galaxy is only about 7,000 light-years, and the number of stars and civilizations is much less than that of the Milky Way. Only part of the Milky Way galaxy has been hit by dimensionality reduction, but the Magellanic galaxy has been completely dimensionally reduced and directly erased from the three-dimensional space.

However, the disappearance of the Magellanic Galaxy has only happened in the last 10,000 years; The solar system where the blue star is located is hundreds of thousands of light-years away from the Magellanic Galaxy, and the light needs to travel hundreds of thousands of years to reach here. Therefore, at this time, in this starry sky at the edge of the Oort Nebula, the existence of the Small Magellanic Galaxy can still be seen - it was the Small Small Galaxy hundreds of thousands of years ago.

The two of them, Ye Fang Zhou and Qiong Haotu, are in the starry sky far away from their hometown, tracing the traces of their hometown.

"This is probably the magic of time and space!" The indifferent Ye Fangzhou couldn't help but sigh and sigh, "In the cosmic coordinates where my hometown is located, I can't see the starlight of my hometown; Instead, you have to stay away from your hometown to find your hometown! ”

"The light of a galaxy is enough to travel hundreds of millions of light-years or more!" "The light of the Magellanic Galaxy will not disappear completely until at least a few hundred million years later! If you're lucky, you might even have a few rays of starlight that will last forever in time! ”

"Eternal in time?" Ye Fang Zhou shook his head, "In this cold and chaotic universe, what is eternal!" ”

The two of them looked again at the two-way foil shown on the ship's screen.

At this moment, they have a kind of empathy with the weak Blue Star Civilization - at the beginning, their home galaxy and hometown civilization should be as weak and helpless as the Blue Star civilization in front of them when facing the dimensionality reduction attack, right?

It took a long time for the two of them to withdraw their gaze from the spaceship screen.

"Let's go!" Ye Fang Zhou put away his empathy and resumed his indifferent posture.

"It's time to go!" Qiong Haotu also said, "What should be given and what should be taught, we have already done it!" As for the next ...... Whether the Blue Star Civilization can successfully complete the two-dimensional transformation of civilization is their own business! Maybe one day, we will have the opportunity to meet them again in the two-dimensional world! ”

"Perhaps!" Nightshade doesn't really think so.

Goodbye in a two-dimensional world?

It's so hard!

"Let's go to the next stop!" Ye Fang Zhou said again, "The next stop is a civilization that is much more developed than the Blue Star Civilization!" The planetary system they are in has almost completed the construction of the Dyson sphere, and is almost 100% able to make perfect use of the energy of their star! ”

"Level 2 civilization?" Qionghaotu was a little surprised, "The energy controlled by a level 2 civilization is more than 10 billion times that of a level 1 civilization!" It's not easy to run into a level 2 civilization! ”

"But it's just barely a Level 2 civilization!"

In the midst of Night's disdainful voice, the triangular spaceship they were riding in began to start.

I saw that the entire body of the spaceship began to bloom with a light blue light, and then the space around the spaceship began to rotate, twist, and fold continuously...... A door from the three-dimensional space to the four-dimensional space began to slowly open.

At the same time as the door of the fourth dimension opened, the spaceship with the shape of a regular triangle was gradually compressed and narrowed, until it changed from a "triangle" to a "line segment".

A line segment with only length and almost no width.

This line segment is the shape of this regular triangle spaceship after folding into the four-dimensional space.

The universe has a speed limit!

The upper limit of this speed is the speed of light, which is close to 300,000 km/s.

But the universe is so vast that the Milky Way is 100,000 light-years in diameter. If you are traveling in three-dimensional space, it will take hundreds of thousands of years to cross the entire galaxy, even if you are flying at close to the speed of light.

In the four-dimensional space, although the upper limit of speed is still the speed of light, because the four-dimensional space is a highly folded three-dimensional space, it is much faster to travel in the four-dimensional space than in the three-dimensional space at the same speed! Moreover, in the four-dimensional space, there are "shortcuts" such as wormholes.

Soon, this spaceship in the shape of a "line segment" completely disappeared into the three-dimensional space and entered the four-dimensional space.

Immediately, it continued to accelerate in the four-dimensional space, and in just a few minutes, it drove out of the equivalent of "one light year" in the three-dimensional space, and quickly moved away from the solar system.