The Three-Body Problem: The Most Competent Wallfacer of All Time

Chapter 415: Upward Ladder in the Universe
The so-called "preservation" concept, Jiang Yu also thought of it before, just like the Hole of Bootes, there is a four-dimensional space with a diameter of hundreds of millions of light-years that does not or slowly falls to the three-dimensional space.

There must be an advanced four-dimensional civilization that has found a way to slow down or stop dimensionality reduction.

Jiang Yu asked the question that had been in his mind for a long time: "Since there is such a relatively stable four-dimensional space in the universe, will there be a five-dimensional or six-dimensional space on a macro level?"

36 said: "I think there should be, but it must exist in a special form.

"In a universe where three-dimensionality is the mainstream, it will definitely be very difficult to maintain a four-dimensional space, and the difficulty will increase exponentially if a higher macroscopic dimension is maintained.

"But I think tricks can be used, such as enclosing a piece of space so that it is free from the influence of space and light cones, forming a world of its own and forming a small universe.

"This should be able to avoid the dimensionality reduction of the macrocosm, but this method also seals one's own civilization in a small space, which is not much different from the 'black domain'."

Jiang Yu was taken aback, he was familiar with the concept of "small universe": "Is it possible to realize the concept of small universe you mentioned?"

Dao 36: "Jiang Shiliu has done relevant demonstrations, which is like a fantasy in terms of current human technology. We must at least have a certain understanding and application of the dimension of time before it can be realized."

He glanced at Jiang Yu: "I didn't expect you to be interested in the universe, it doesn't fit your personality!"

The small universe seems to be quite tall, but it is actually a kind of civilization self-locking, and it is also a negative way to deal with the attack of the dark forest.

At this moment, Jiang Yu suddenly realized that his hard work had given many people the confidence to face the dark forest.

It is true that when facing the dark forest, one cannot be too careful.

But if you are too careful and don't have the courage to face the dark forest, then human beings will always live in the fear of the dark forest like mice.

Jiang Yu was a little relieved at first, then smiled and said: "I just think the concept of a small universe is quite novel. Go on, what is 'micro-scale dimension enhancement'?
"My wife studies this. I know a little bit about the theory of dimensionality. Isn't the microscopic dimension from five dimensions to ten dimensions? How can there be a saying of ascending dimensions?"

"The macro dimension is slipping to the micro, isn't that what you thought?" 36 reminded:
"According to your idea, I think the macro and micro dimensions should be like a seesaw, one less dimension in the macro, one more dimension in the micro.

"Imagine this, if the universe is in a ten-dimensional state, the entire universe will have no dead ends or closed places for ten-dimensional creatures, and any place can be observed by them without hindrance!"

Jiang Yu understood: "When the macroscopic ten-dimensional becomes nine-dimensional, the universe seems to have obstacles.

"Like a safe in three dimensions, in four dimensions this three-dimensional safe is completely open.

"But after dimensionality reduction, the original viewing angles completely disappear, and the safe becomes closed!"

36 wiped his sweat and said, "That's the truth!

"The microcosm in the ten-dimensional state of the macrocosm must be low-dimensional. When the dimensionality is reduced on the macrocosm, the microcosm must be upgraded!
"This is also in line with the law of conservation in a broad sense, otherwise the original extra dimension will disappear after the dimensionality reduction of the universe, which is obviously unreasonable.

"The dimensionality reduction from [-]D to [-]D is not easy to explain, let's take the dimensionality reduction from [-]D to [-]D as an example.

"A cube is reduced in dimension to a square. If the volume and thickness of the three-dimensional universe disappear, then this dimensionality reduction will cause the universe to lose more than 99.99% of its energy and mass.

"Even if the area of ​​the two-dimensional square is larger than the area of ​​the three-dimensional cube, it doesn't make sense. If the mass of the three-dimensional cube is expanding the area of ​​the two-dimensional square, then the falling process must be extremely slow!
"Because for a two-dimensional square, a three-dimensional cube has infinite height, and may never fall from three dimensions to two dimensions.

"And according to our observations, the four-dimensional fragments fall to three-dimensional at a very fast speed, which is inconsistent with the theory!

"Then after the dimensionality reduction, where did the mass and energy of the extra dimension go?"

He was clearly in the sauna, but Jiang Yu felt a little cold: "I understand what you mean, you went to the microcosm, right?"

The theory involving dimensionality reduction in the original book is not very comprehensive. At this moment, Jiang Yu realizes that these ideas of 36 are probably the real face of this fucking universe.

"That's not entirely true!" 36 said: "The lower the macro dimension, the higher the micro dimension.

"The dimension has entered the microcosm, and the high-dimensional ruins have become various dark matter, which is also in line with the mass ratio of dark matter and three-dimensional matter!"

36 took a deep breath: "The biggest achievement of my thinking is to find a way out for human beings in the dark forest!
"If human beings want to completely get rid of the impact of the dark forest, they must find the upward ladder and break the downward ladder at the same time!"

Jiang Yu immediately said: "Let's explain it more clearly!"

"The so-called finding the upward ladder means that we can use the high dimensions hidden in the microcosm to allow three-dimensional creatures such as humans to improve their own dimensions!" 36 said:
"In this way, we can not only avoid the dark forest attack of most three-dimensional creatures, but also assist our compatriots in the three-dimensional universe from a higher dimension to achieve more brilliant achievements!
"Of course, after reaching a higher dimension, we will be hit by a new dark forest, but for the entire human race, our strategic depth has increased by another dimension!"

36 These words made Jiang Yu suddenly enlightened.

36 paused and continued: "The so-called 'breaking the downward ladder' means that I realized through the information provided by Venus that it is a very stupid strategy to follow the dimensionality reduction of the universe!
"At the beginning of the new dimension, it is possible to dominate for a period of time, but because there are too many obstacles and closed spaces in the new dimension, the advantages of the first era creatures like Venus will gradually lose!

"And for the dimensionality reduction of a civilization itself, first of all, the blow to its own living body is huge! This is equivalent to making yourself as fragile as a piece of paper before hurting the enemy!

"The most important thing is that according to the situation of Venus, as long as the dimension reduction is started, it can't be stopped!

"He dropped from six dimensions to three dimensions, what's left now?"

36 said solemnly: "So in the future, we must not reduce our dimension because of adapting to the dimension of the universe. For this reason, we must find ways to protect the three-dimensional space and attack the two-dimensional space from now on!"

Jiang Yu hurriedly asked: "Is there a specific plan?"

"Jiang Shiliu gave a conservative plan and an attack plan!" 36 immediately replied: "Gravity is a force common to all dimensions, and we can use dark matter and gravity to achieve our goals.

"The so-called conservative plan is to use a gravitational field to protect the three-dimensional space, and the specific method is to use the gravitational field to enclose the two-dimensional or three-dimensional space!
"Ultimately achieve the purpose of blocking the expansion of two-dimensional space, or preventing the sliding of three-dimensional space!
"The attack plan is to find a way to turn the central part of the two-dimensional space into zero-dimensional, so that the expansion force of that two-dimensional space becomes a contraction force!"

(End of this chapter)