??? 1900 years ago, mankind first extended the maintenance time of controlled nuclear fusion to six months.
??? Eighteen hundred years ago, two hundred years after the last human being was killed by a nuclear bomb, mankind promoted controlled nuclear fusion technology, and then eliminated hunger and environmental problems.
??? Fifteen hundred years ago, the Third World War ended, and the earth was lucky to escape from the shadow of nuclear blood washing. In the same year, human society finally eliminated separatism and racism, nationality differences, regional differences and complete reunification.
??? Twelve hundred years ago, the first curvature engine was started and tested outside the Kuiper belt. Twenty years later, it returned to its starting point. Its own time was less than half an hour.
??? A thousand years ago, the first man-made spacecraft arrived in Centaurus α Galaxy.
In this short 1000 years, curvature spacecraft took human footprints to 391 galaxies. Nearly 30% of these galaxies could only be observed with large aperture radio telescopes 2000 years ago. With the exploration of human beings in space, human culture and art also show geometric multiple development and prosperity.
??? At this time, I was born. That day, according to the ad, was October 7.
??? In this era when science, technology and art are quite developed, human beings feel more and more empty. Indeed, from the material point of view, human technology continues to develop in a more advanced direction, and human literary and artistic activities continue to burst out vitality with the exploration of interstellar space. But at the same time, because of the development of technology, many problems that did not exist have emerged one after another, and some problems that were too far away to be touched now also have a faint hope to explore their answers.
??? Among these questions, one has existed for more than 2000 years - what is the end of the universe?

??? Two days before my 29th birthday, I boarded Noah“ Noah is equipped with eight sets of life support systems, which are respectively sufficient to maintain 40 lives for hundreds of years, and they are backup to each other. Her stern is equipped with the most powerful curvature engine ever built, and the innovative parallel three ring lock furnace provides amazing and stable huge torque“ Although Noah is equipped with 40 sets of low-temperature dormant modules, she only carries 34 people for safety, and I am one of the star observers.
??? When I took a transport boat to approach Noah, I had an illusion that I was boarding the airship used by the ancients 2000 years ago - under the huge air bag, only a small part is the payload - in fact, the structure of Noah is really like an airship. Most of its cigar shaped hull are compression tanks of fusion fuel, Only a small semi spherical area in the front is the passenger area. Although relatively speaking, the passenger area is not large, in fact, the space is enough to accommodate 61 cabins, large and small. I guess she thought the same when she boarded the sister ship Noah.
??? Now, moored in centaur α The galaxy's Noah is about to embark on an irreversible journey with its sister ship, the ark anchored in the solar system.
??? Noah and Ark will accelerate in the opposite direction, keep approaching the speed of light, use relativity to surpass time, reach the end of the universe, and explore what kind of picture it is at the end of all that.

??? Human beings, a tiny race in the three-dimensional universe subject to gravity and relativity, finally stretched out their hands towards the answer at the end like countless pioneers.

??? Leaning against the bulkhead of the spaceship, I can vaguely feel the slight vibration from the tail of the spaceship. I'm glad I didn't turn on the speaker, otherwise I would be deafened by blessings and cheers. Human society is really much more enlightened than I thought. Their support for our one-way voyage seems to come from the bottom of their heart, as if they are not afraid of our defection at all. It's really happy that what the ancients dreamed of has finally become a reality in our generation.
??? I finally turned on the speaker. This will probably be the last time I hear people in the galaxy. The voice has obviously become slow. The elongated voice seems a little distorted. I can't help crying. I'm leaving Centaur now α The galaxy must have been hundreds of millions of kilometers. I was only a few years away from the lingering girl in my heart ten minutes ago, but now I am separated by the whole universe.
??? The sound of blessing tends to stagnate. Finally, there is no sound from the speaker. I turned off the speaker, removed the blank pop-up windows on the bulkhead, and silently looked out of the ship through the optical camera and cable.
??? It's all stars.
??? Those stars are dragging an amazing length of red and white trails from the bow to the stern. I have never noticed this scene in the curvature navigation in the past. Until now, I feel what a shocking streamer picture it is! Countless stars swarmed out of an infinitely small bright spot at the bow of the ship. Each star turned into a silver light spot. In an instant, it had crossed the ship and disappeared into another bright spot at the stern. These countless stars leap around me and weave into a dazzling river of streamer, and I am sitting on the Noah chopping waves and rapidly moving forward in the droplets gathered by the silver light belt!

??? My 29th birthday is tomorrow. When she met last time, she said that Noah had already carried the birthday present she had prepared for me. It's a pity. When I receive it, it's probably a long time for her, but for me, it's like a dream.
??? Because it's going to hibernate.
??? AI will wake us up when propulsion fuel consumption is nearly half.
??? I lay in the hibernating cabin and let the low temperature lock my body and my soul. At this moment, I seemed to see her again, blinking brown eyes and smiling at me. The smile soon solidified with my thoughts and became a beautiful statue in my stagnant mind.

??? A light appeared in the center of my dark field of vision. Soon, the soft white light lit up everything in front of me. My brain struggled to distinguish the scenery in front of me. Dull, it could not recognize the objects in my field of vision one by one.
??? Am I in bed? No, the bed should be softer. Am I at home? No, it should be warmer at home. Am I with her? No, she should
??? Where should she be?
??? I kind of remembered that I was in the sleeping cabin of Noah, with 33 other people. She is on the ark, behind me, in the infinite distance.
??? I went back to my observation module. The engine is checked by a specially assigned person. All I need to be responsible for is my observation cabin. When I started the observation module, the holographic projector also started at the same time, throwing rows of white light spots in the narrow observation cabin. I don't know what it wants to express. I change the angle and want to see the whole picture. Then, when I am facing the main screen of the observation module, my eyes are wet.
??? On the background of the red and blue light bands, floating Chinese "Happy Birthday", and her smiling face, the smiling face haunting my dream.
??? I turned off the projector and tried to restrain my emotions from gushing out. In such a lonely voyage with no beginning and no end, this fragile emotion is harmful.
??? The two-color background is still flowing. Countless dark blue light bars stretch out from the infinitesimal point in front of the bow and extend to another infinitesimal point behind the stern. The dark blue light bar gradually becomes bright when it approaches me. At the moment of crossing me, it suddenly turns red, extends and shrinks backward, and finally disappears. The universe in front of me is like a pure two-color world cut from the center - one side is blue and the other side is red. Under this dazzling light flow, it is the color of void.
??? Emptiness is emptiness. It is not black or white. It has no color, and I have already adapted to the color of my eyes. For the first time, in the face of such a spectacle, there was a little discomfort. The emptiness that should not have any light turned into countless flowing light screens and infinite forms in my eyes. I tried to open my eyes and let this strange scene flow into my eyes, but in a few seconds, I had fallen on the observation screen.
??? How many people can see the present scene in the whole human civilization?
??? When I left the as like as two peas, the fusion reactor and the curvature engine were checked and almost exactly the same as they just started, except that fusion fuel has consumed nearly half. The atomic clock on the spacecraft tells us that it has just passed the 94651200 second after departure. It's been three years. It's really like a dream.
??? The remaining fusion fuel was originally used for deceleration before the final moment, but now, through voting, we unanimously decided to continue to accelerate, and only one tenth of the fuel originally planned was reserved for necessary energy supply.
??? Humans may have stopped the collision between the Milky way and Andromeda, or they may have died out due to the attack of Galaxy level cosmic storms just after we started.
If a creature observes Noah at a very low speed, he will probably see that the huge mass possessed by Noah distorts space. One end of the space shrinks sharply, but the other end expands sharply, marking a pure black track that may never dissipate in the universe and will not emit any color. If it is smart enough, it can probably calculate how close the spacecraft is to the speed of light through the gravitational effect of Noah in very low-speed space.

??? Hibernate again
??? Lying in the hibernating cabin, my consciousness gradually blurred with the decreasing temperature. In a trance, I saw her smile again and heard her crisp laughter. I want to try to squeeze out a smile at her, but the cold has already gone deep into every inch of my skin. I can only let my consciousness dissipate gradually......

??? I'm awake.
??? I woke up again in his familiar environment.
??? This is the sixth anniversary of Noah's departure and may also be the sixth anniversary of the Ark's exploration, although this possibility is very small.
??? 34 of us gathered in the engine room and watched the final trembling of the curvature engine. There was little nuclear fusion fuel left to power the propulsion, which could only support Earth time for more than seven hours at most.

??? Outside the hull is still the universe, the red and blue universe.
??? I floated quietly in the observation cabin, and the air flow blown by the ventilator drove me to rotate along a non overlapping circular orbit in the cabin. I glanced at the bulkhead around me. The Milky bulkhead showed a distorted me. I stared at the reflection of myself on the bulkhead, and suddenly a strange idea came into my mind——
??? How fast am I now?
??? I activated a 5000 Watt green laser at the rear of the ship, and the light direction pointed forward. A wonderful scene that I had never seen appeared - the green light was crawling slowly, and I could even see its fluctuation. It was a wonderful movement. A mass of energy that neither showed a continuous form nor dispersed into independent photons expanded and contracted orderly and passed slowly through my eyes. I feel lucky that the laser scattering is enough for me to see it clearly.
??? It's so strange that there is a green light creeping forward on the light band that swings back and away madly!
??? I soon understood that relativity was still working, and I was quite close to the speed of light, so I was lucky to witness this little-known dreamlike scene.
??? Turning off the laser, I watched the green beam disappear in the bow direction. That's the direction, the answer at the end we're going to ask for.
??? But my heart is trying to move in the opposite direction, trying to surpass the speed of light and go to her side.
??? I really hope her luck is as good as mine.
??? Whoever sees me should laugh at me. It's just my vain imagination.
??? I was informed that I returned to the hibernating module. AI will wake up four people every eight years. After waking up for a day, these four people will return to the sleep module to cycle back and forth.
??? What is she like now?
??? And what will it look like?
??? Finally, my consciousness is blurred again......

??? It seems that I just keep waking up, hibernating, waking up and hibernating, mechanically repeating monotonous activities, allowing my life to pass bit by bit, together with 33 companions and with her.
??? Noah has been sailing for 99318 years from Earth time, and I am already 33 years old.
Noah is similar to what I thought it was three years ago: Milky walls and soft lights. This is still the young Noah. Only the slowness when the observation hatch is opened reminds me that this nearly 100000 years is not a dream.
??? My face looks more than 33 years old, but it looks like a man in his thirties and seventies. It seems that even the low-temperature dormant cabin can't stop the pace of time. Alas, time!
I'm so old. What about her?
??? Would she have left tens of thousands of years ago?
??? Thinking of this, I suddenly fought a cold war and blamed myself for thinking about such unforgivable things. I might be a little older than her. I tried to comfort myself.
??? The observation module is finally started, which is a little slower than the last time.

??? Fortunately, the hardware functions are still very complete, and there are basically no faults. I turned on the monitor and saw the solid blue universe I was already familiar with. Countless blue light strips wrapped the spacecraft. They emerged from the flash point at the bow, extended to the flash point at the stern, and then disappeared. When the blue light flow passed me, there was no color change, only a slight increase in brightness.
??? As usual, I turned on the 5000 Watt green laser pointing ahead and turned it off. It has become a comfort to watch the miserable green beam climb in front of me. This is still the normal universe, I am still the normal me. Everything is still going on normally and orderly, and there is no mistake.
??? Even if the universe goes wrong, we may not find it limited by the laws of the universe.
However, there is a good news, an excellent news - the universe is indeed shrinking.?????

??? According to the time of the spacecraft itself, the contraction began between 24828 and 24836 years ago. Unfortunately, no one was awake at that time, so I and others can only travel through that great moment with imagination. Of course, it is based on automatic observation data.