"Let's go!"

Lu Yu gave an order, and the space jump started again.

Not even the speed of light and constant changes can penetrate the armor of the Silver Star, which may be a cage for a civilization, but it is definitely not the Silver Star's!

It reached 1 light year away from the Black Domain in the blink of an eye, and the Black Domain could not affect the space jump, so Lu Yu was slightly relieved.

Looking at the black field from a light-year, it was pitch black, and no light or gravity was detected, as if it were nothingness.

"So the entire galaxy that fell into the black domain has become a relatively independent system of the universe, and with the sudden change of the cosmological constant, wouldn't the entropy value in it increase rapidly?"

"Even if the civilization inside has a way to transform its form and survive, the increase in entropy can cause the entire civilization to collapse quickly, right?"

Entropy increases have irreversible and huge effects on this universe.

It can be said that it is precisely because of the principle of entropy increase that time will not turn back, and the universe has been shaped into what it is now.

Entropy, a measure of the degree of chaos in the distribution of matter within a system, was born from the second law of thermodynamics. The concept of entropy can be illustrated by a simple example. Everything in the universe has its own entropy value, a teacup has its own entropy value, a pen has its own entropy value, and even a computer, a human being, has its own entropy value.

There are big and small entropy values, and a newly built house has a very low entropy value because it is very neat and orderly. A dilapidated house that has not been cleaned for a long time and is full of dust has a higher entropy than a new house.

The entropy of a broken cup is higher than that of an intact cup, the entropy of an old computer is higher than that of a new one, and the entropy of a decaying corpse is higher than that of a living person. In short, the more dilapidated and chaotic the structure of a thing, the higher its entropy will be.

In a self-contained system, entropy can only increase, not decrease.

Think of a house as a stand-alone system. In the absence of external energy, external organisms, and so on, all external conditions, as time passes. The house can only get more and more chaotic. The ash on its walls will fall off, the house will collapse, and eventually, all the matter that makes up the house will be evenly distributed within the system, and its entropy will be at its highest.

If you replace the house with the universe, the entropy will increase and the final result will be heat death. At that time, there will be no celestial bodies in the entire universe, all stars, planets, comets, white dwarfs, neutron stars, and even black holes will all disappear, and the universe will be filled with infinite leptons and photons.

The structure of the atom will be completely destroyed, and matter will cease to exist, except for death.

This is the inevitable end of a separate system and one of the famous apocalyptic conjectures.

What has been observed so far outside of the Black Domain is that it has become almost a small, independent system that does not communicate with the outer universe. If the blockade can't be broken, everything inside will eventually evolve into a heat death state of a small universe in advance.

Scouting is over!

It's really hopeless, farewell!

Go back and get the star map!

The simple reconnaissance was completed in this way, and it seemed that the Qing people's commission could be fulfilled in this way.

Lu Yu thought about it and decided to do more dutifulness.

This time jumping ten light-years away, the observed location of the Black Domain was the same as it was ten years ago.

Comparing the two, there is a subtle difference.

"This black domain is shrinking little by little."

Comparing and analyzing the observed results, 7 quickly came to the conclusion: "The black field of a year ago is nearly a lightsecond smaller than the black field of ten years ago. ”

That's a lot more interesting.

If this civilization is to be blocked, why is it still shrinking the Black Domain?

Even if they survive in the Black Domain, technology will stagnate, and sooner or later they will die trapped in it.

Lu Yu thought about it and decided to observe it again.

This time, the Silver Star jumped directly five hundred light-years away, and what it could see was the appearance of this star system five hundred years ago, when this star system was already wrapped in the black field.

Then it jumped four hundred light-years away, and the black domain was significantly smaller in comparison.

It has shrunk from the position of the outer nebula to the position of the astrolabe.

If converted to the solar system, the extent of the Black Domain has narrowed from the location of the Otre Nebula to the Keyinbo belt.

This peculiar situation only aroused Lu Yu's curiosity, and more than a dozen spatial jumps allowed him to quickly get the observation data he wanted.

This galaxy fell into the Black Domain about a thousand years ago, and it has been shrinking since 800 years ago, but after nearly 300 years, the shrinkage has become minimal.

Lu Yu used this almost cheating space jump, constantly switching observation positions at a position of nearly a thousand light years, constantly comparing the range of the black domain, and obtained such an unexpected result.

"Walking on the Stars"

This is not about traveling through time and space, but about using the limits of the speed of light to constantly observe the history that has happened in the past across space.

When he came to such a conclusion, there was one more insoluble mystery in Lu Yu's heart.

It can't be a high-level civilization experimenting with weapons and randomly picking a lucky civilization, right?

Since a civilization has fallen into the Black Domain, why should it continue to shrink the Black Domain?

Aren't you afraid that after people break the blockade, there will be several technological explosions and come directly to you for revenge?

"Are we going back?"

Reminder No. 7 brought Lu Yu's thoughts back to the present, and the current observations were enough to deal with the Qing Clan.

Lu Yu hesitated.

Because in his opinion, there is definitely some secret hidden in the black domain!

Originally, after encountering the wormhole crisis, Lu Yu began to be cautious again, but the result of personal verification was that the black domain could not restrict the space jump.

If you even retreat from this, it is no longer a matter of prudence, but a complete fear.

The hymn of humanity is the hymn of courage.

Let's not talk about how to face those unknown existences, if you are afraid of even the situation that you can control.

Then the next step is not to explore the way back to the blue star in the universe, but to completely scare the cowards who are timid, and just want to escape back to the home planet.

Even if you return to Blue Star in the future, you will be dominated by residual fear!

And is his journey in the universe really over when he returns to Blue Star?

The moment I got the Silver Star, maybe my footprints were destined to be in the sea of stars, right?

The wormhole crisis has allowed him to regain awe and caution, rather than losing his courage to become an ostrich.

Lu Yu looked at the living area where the blue flowers bloomed again, and then looked at the black domain in the starry sky that seemed to have an extra black velvet step.

What's more, he is not alone, Lu Yu held No. 7's hand and said, "Let's go into the Black Domain again." ”