On this day, Zhang Yuan stood in a small room in Kunlun Mountain, quietly looking at this vast desert and desolate, but vibrant planet. This will be their forever home base.

"Okay, Captain Kunlunshan, it's time to be on TV, dress up a little handsome, don't frown all day long, yes, relax, relax." With a smile on her face, Lin Xuanxuan buttoned the buttons on his clothes one by one, and gently smoothed out the folds on his clothes.

After doing all this, she changed into a beautiful dress for herself, and the two of them walked out of the door of the room one after the other.

Yes, just today, after a full hundred and five years of human development, we can finally start again!

It's exciting, but it's also a little lost.

All material resources had been delivered to the ship months earlier, and the staff had counted them in the warehouse several times without any errors.

Now all that remains is a mutual goodbye between people.

yes, goodbye......

Farewell......

The central control room was already full of people, as well as some TV reporters, and the discussion was particularly intense.

"I didn't expect to be alive to see the scene of our departure......," Zhao Qingfeng stood aside and sighed softly, "It's so good, every departure is like a newborn sun, always full of vigor and vitality." ”

"I just love seeing it."

Zhang Yuan also smiled, he was thinking about the next direction of human development.

On the external side, of course, I am exploring the outer world along the cosmic strings, and I don't know what I will encounter in the future, and I don't know what kind of story will happen......

For all this, mankind has equipped Kunlun Mountain with a fairly strong military force.

With 23 Haiyan-class frigates and 3 Falcon-class destroyers, this military capacity basically reaches the maintenance limit of 8 million people. No matter how many ships there are, they are useless if they don't have enough people and economies to maintain them.

As for the direction of internal development, it is even more important, hibernation in interstellar journeys, planning of virtual worlds, and plans for the transcendent...... There's so much to worry about.

The entire 8 million people who carried out the wandering plan were actually more radical in their thinking, and this radicalism could be more beneficial, or it could directly lead to the capsizing of the boat, and it disappeared into the universe without even a single wave.

Therefore, while maintaining a strong fighting spirit, we must be more cautious and steady.

Thinking of the heavy burden on his shoulders, he couldn't help but sigh.

The universe is so cruel that judging from what happened to the Gliese civilization, it only shows the tip of the iceberg. But even the tip of the iceberg is daunting enough.

Many people ask in their hearts, why not continue to develop on this planet?

At least it means safety, it means ...... Stable.

What if technology develops more slowly? This is actually the usual development idea of people.

It's not that the population of the new civilization has become lazy, in the past hundred years, the spiritual outlook of the entire civilization has never been so good, and there is a declining Gliese civilization set aside as a lesson, reminding itself all the time, whipping himself, it is difficult to be diligent or not!

According to the data collected by the big data system, in recent years, basically everyone has worked diligently, there are very few people who cheat and cheat, and the crime rate is very low.

Everyone is quite satisfied with the entire economic distribution system, which is a golden age that has lasted for a hundred years.

And the real inertia comes from another level......

At ease.

Until the genes are completely modified, it is impossible for human beings to get rid of the comfortable thinking that comes from the root nature.

Why take the risk when you can be comfortable? If you can develop here, why go on a deep space voyage? This is the subconscious that belongs to human beings.

But in fact, the development goal of the new civilization school is not to make civilization last forever, and it is very simple to do this, just find a remote planet and squat.

But...... Always moving forward!

Now is the time when the development is at its most rapid, and the self-confidence of civilization is at its strongest, with 8 million people willing to leave. But Zhang Yuan understands very well in his heart, the basic scientific and technological dividends have been almost eaten, and if he continues to develop like this, he will only study some trivial things, and there will be no qualitative changes.

So, what about a hundred years from now? Perhaps only four million people are willing to leave.

What about two hundred years from now? Maybe it's only two million.

So, now is the best time to do it.

On the other hand, hiding on this planet and developing slowly is not an absolutely safe act, on the contrary, there are other risks involved......

Two civilizations have visited this star, and this is not by chance, but by necessity! There happens to be a straight cosmic string here, about 3.3 astronomical units, or 448.8 million kilometers, from the current location of the Kunlun Mountain.

Humans can discover ways to use the cosmic strings to propulsion, and other extraterrestrial civilizations can theoretically discover it.

In other words, these two interstellar civilizations are likely to sail along the cosmic strings. It's a resource supply point! ”

"Cosmic strings, which can be described as a natural highway in the Milky Way, will increase the chance of encountering alien civilizations in this vicinity...... Fortunately, a civilization that uses cosmic strings for interstellar voyages cannot theoretically be unimaginably strong. Our fleet can be regarded as a relatively powerful starfleet, and there is no need to be afraid of encountering some interstellar civilizations with each other, as long as they can deter each other and maintain equal communication. ”

"Civilizations of level 4 and above can directly sail at the curvature of faster than the speed of light, where is the use of moving along the cosmic strings?"

Not every star has such a linear cosmic chord nearby, on the contrary, there are only a few stars in this unique geographical location.

For example, there is no such cosmic string distributed around the solar system, so the poor earthlings have no way to use this way of sailing.

Earth's civilization ships can only rely on nuclear fusion or light sails, propelling slowly. Unless it takes thousands of years, travels a few light years, and finds a cosmic string, it will be able to advance rapidly along the cosmic string.

This is a good thing, it means a large degree of security, and it is unlikely that there will be interstellar civilizations below level 4 to run to the earth.

It's also a bad thing, meaning ...... The earth has become an island, where there is no communication and no commercial trade.

Of course, since the entire galaxy is also revolving along the central black hole, the stars near the cosmic strings will also change to a certain extent, and every few hundred thousand years, all geographical locations will change dramatically. Maybe the solar system will move around a cosmic string.

So, how high can we use the gravitational pull of the cosmic string to propulsion?

The answer is...... It's close to the speed of light!

Gravitational acceleration is a special acceleration mode that can be used to propel a spaceship, a planet, or even a star, and black holes are no longer a problem!

The energy contained in the cosmic string is so great that it prompted the formation of galaxies and galaxy clusters after the groundbreaking Big Bang! The energy of a galaxy is nothing more than a tiny amount of dust in comparison.

Even though the vast majority of strings have declined, the energy they contain is still far beyond what humans are currently capable of attaining.

But then again, limited to spacecraft material technology, communication technology, and long-range escort capabilities, humans can only accelerate the Kunlun Mountain fleet to about 10% of the speed of light. No matter how high it is, it will not work, and it will have to come up with some safety issues.

The speed of light of 10% already has a slight relativistic benefit, which is completely fantastic in the eyes of scientists.

Coupled with hibernation methods, a closer star can be done in fifty or sixty years, which is completely enough for interstellar travel.