However, in the observable universe, there is a large hole with a diameter of one billion light-years.

There are no galaxies, no black holes, and no dark matter.

It's as if everything there has been taken away, leaving nothing but an empty space-time.

Of course, it wasn't completely empty, but that bit of matter was too sparse compared to the sheer extent. And around this hollow, there are dense galaxies, which are very strange and distinct from there.

Where there is nothing, there are many in the universe, and the interval between galaxies is exactly that.

But this is just an interstellar zone, which seems to have nothing in it, but in fact there is a lot of dark matter.

Nothing like a Great Hollow, even a billion light-years in diameter, is incredible.

After all, a billion light-years is too big, and in the observable universe, it is unusually dazzling.

This kind of thing is impossible under normal circumstances, and even the empire thinks it's a mystery.

The empire also had conjectures, mainly three.

First, coincidence. When the first generation of stars in the universe erupted to give birth to galaxies, it happened to form such a zone where material did not patronize.

Second, there is a primordial black hole in the universe, which has swallowed up all the matter in its vicinity over a long period of time.

Third, one or more super-civilizations may have done it because of war, or it could be something else.

Of these three conjectures, the first two are just accompaniments, so there is no need to talk about coincidences.

When a black hole swallows up a large amount of matter, massive stars emit gamma rays, but the Empire has not yet observed the remnants of a large amount of gamma-ray bursts there.

Therefore, only the super-civilization is left, which is the most convincing.

But this is too terrifying, all the matter in space-time with a diameter of one billion light-years is gone.

What kind of behavior is this? war?

What kind of weapon is it caused by that? The Great Tear is impossible, and even if there is a civilization that can achieve a super Great Tear in the range of a billion light years, there is nothing left under the Great Tear.

Matter is divided into the smallest particles, and light appears intermittently at the edges, in short, it is not the void phenomenon observed today.

And the Great Tear will not last forever, and when space-time stabilizes, the matter inside will re-aggregate with each other due to gravity.

The Empire has been observing there for tens of thousands of years, and the void has not changed to this day.

Most likely, it is a vacuum decay, in which the matter returns to a vacuum ground state.

A civilization may have been accidental, or it may have been intentional, causing a vacuum to decay there, and it took 500 million years for the decay region to expand to the scale of a billion light-years in diameter.

"Hey, if it's a vacuum decay, why hasn't it expanded?" Bai Ge asked.

The bell said: "The Great Void is three billion light-years away from us, so what we observe is the state of three billion years ago. Vacuum decay travels at the speed of light, and it stands to reason that the Milky Way was already decaying when we observed it. But no, and we're still observing a billion light-years in diameter. This means that it is not expanding and is relatively stationary. ”

"It is already obvious that the decay of the vacuum, once it has begun, cannot be stopped naturally, and there are civilizations that have stopped all this. ”

Bai Ge nodded, no wonder the bell said that there was a third-level civilization.

It's like a bucket with a hole in the bottom, and the water will flow unstoppably through the hole until it becomes an empty bucket.

Under natural circumstances, it is impossible for the water to flow partially, and suddenly it is still without leakage.

The only explanation is that someone plugged the hole.

'Plugging holes' is easy to say, but for the microorganisms in the bucket, it is still an incredible thing.

In existing physics, there is not even a theoretical solution.

Unless there are not only microorganisms in the bucket, but also a fish, which plugs the hole.

Saved all the water and microbes in the bucket.

Switching to the universe is equivalent to a super civilization saving all the matter and life in the universe.

The empire did not dare to think of such a civilization, and there was no point in thinking about it.

And this was three billion years ago, and the empire was very excited to study it at the beginning, but after a long time of nothing, it gradually faded into oblivion.

"According to my assumptions, this may not be an accident, but a civilization that did it on purpose, returning all matter within a billion light-years in diameter in exchange for something they wanted," Bell said. ”

The corners of Bai Ge's mouth twitched, and sure enough, the more he knew, the more terrifying he felt.

The Great Void was discovered as early as 20 years ago for the civilization of the earth, but no one thought that it was done by the civilization.

But standing at the height of Bai Ge, it immediately corresponded to the third-level civilization that he had envisioned before.

The first stage of the third-level civilization can be exchanged with the universe equivalently, and by returning to matter, the universe can return what they want.

But this time, the billion-light-year scale was short, which is really a big deal.

What is the concept of such a large range? The Milky Way is part of the Local Group of Galaxies, which is an ordinary member of the Virgo Supercluster.

The Virgo Supercluster is 100 million light-years in diameter, and there are tens of thousands of galaxies like the Milky Way.

The big hole is ten times bigger.

Bai Ge said: "This is equivalent to a microorganism on the earth and sold the galaxy. I don't know how many civilizations have inexplicably become commodities of trade. ”

"Juggernaut, if we had this kind of technology, we would do the same. Not for war, but for a broader future. The bell said.

Bai Ge thought about it carefully, and really felt that he would do the same.

He didn't know what that level 3 civilization had gotten, but he knew that he would definitely empty the white wolf for energy.

"This has happened since the beginning of life on Earth, and now, like the Empire, we are not qualified to study this kind of thing, at least we have to develop the second level of technology to the limit. It's been three billion years, and if it's already extinct, it's better to say, if this civilization exists until now......" Bell said.

"Then they may have the strength to destroy the universe. Bai Ge suddenly felt a headache.

After thinking about it, Bai Ge said again: "I don't want to be destroyed inexplicably like the civilization that once existed in the Great Hollow. In a way, a civilization with such terrible technological prowess is more dangerous than containment. ”

"We don't know anything about god-level civilizations, just now, I asked the Flying Noodle God, and his answer was very strange, saying that he is the only god in the universe now. The bell said.

"This didn't answer us positively at all, asking him if there was a third-level civilization in the universe, but he said that he was now the only god in the universe? Could it be that he meant that the god-level civilization had been destroyed?" Bai Ge said.

Bell said: "Actually, the noodle god is expressing that he now belongs to the category of 'god' just like the third level of civilization. In other words, the third-level civilization is at the same level as him. Originally, this level of 'gods' existed, but now they are gone. ”

Bai Ge nodded and said, "It seems that in the long years of three billion years, even a god-level civilization will self-destruct. ”

"No, at this point, we shouldn't trust the Flying Noodle God. The bell said suddenly.

"Huh?" Bai Ge was stunned.

"Don't forget the Water of Reason," said the bell, "which makes a part of the universe unknown and impossible for those who come after it to understand. And when the Flying Noodles God fed people, it was only a few months ago. As a new 'god' being, I have reason to believe that he cannot comprehend the existing third-level civilization, at least, that civilization does not exist and must be unknown to him. He said that He was the only one, probably just wishful thinking. ”

Level 3 civilizations are undoubtedly the top beings in the universe, and the way they hide is beyond what can be understood.

After all, there are only more than a hundred drops left in the water of reason, which is equivalent to half of the unknown universe being shielded compared to the full value of three hundred.

Although the Flying Noodle God has a certain degree of omniscient ability, this ability is likely to be limited to this half.

This is not to say that the Flying Noodle God, as a containment object, is inferior to a third-level civilization. It can only be said that he was restrained by the containment of the hand of reason at the wrong time......

The bell is very clear about the depth of information in the hand of reason, and it records not the unknown of this universe, but the principle of the entire dimension. Therefore, in a parallel universe like the Immortal Cultivation Universe, the Hand of Reason will not be recorded repeatedly.

It restricts the exploration of the unknown by all existence, and the Flying Noodle God is one of them.

"In other words, we also have to beware of god-level civilizations that we don't know where. Once they find the containment and set their sights on Earth, I may have to be slaughtered. Bai Ge said in a condensed voice.

Bell said: "However, because of the unknown, it is difficult for us to target, even if the invincible effect is manifested for you, we don't know when they will suddenly attack, and how they will make a move." ”

"Without knowing the means, we can only use the 'invincible' that ignores any attack, and it still exists forever, which is obviously not a price, it is almost as expensive as infinite energy. ”

"So to be on the safe side, I recommend Absolute Sense of Crisis. ”

Bai Ge raised his eyebrows and said: "That's the kind of sense of crisis that I will feel in advance as long as something happens to kill me? No matter what the enemy is, no matter how strong the enemy is, no matter what the method of killing me is, I will get a spiritual warning in advance." ”

"That's right, it's equivalent to death prediction, and predicting it in advance can give us enough time to prevent and prepare. The sense of crisis will always exist until we solve the dead end of the future. The bell said.

Bai Ge felt that this trait was very good, at least this would not happen again, he was developing, and he suddenly died.

"How many days in advance?" Bai Ge asked.

"You can take as many days as you can, first raise the number of stars you have soared to two thousand, and then squeeze them all to the helium flash tipping point. The bell said.

Bai Ge pouted and said, "Two thousand stars......"

"This kind of characteristic has to be done in one step, only two thousand stars, and when the Immortal Arm civilization is solved, tens of billions of stars are at your disposal. The bell said.

Of course, Bai Ge understood that as long as he developed steadily and did not die, he could achieve his goal.

If you really want to save so much energy, you will be coldly cleaned up by an unknown existence, and it will be too late to regret it.

......