Deep Space Fleet

"Hello, the new ruler of the galaxy." Out of etiquette, Zhang Yuan replied politely.

He couldn't help but sigh in his heart. As human beings bravely took that step, the two sides seem to be in the same order of magnitude and can talk on an equal footing.

Zhang Yuan now knows that there are not many civilizations of this type willing to manage the Milky Way. Most of the fifth-level civilizations, or higher-level civilizations, have their own ideals and plans, and they are not willing to spend a lot of time on On the endless fallen civilization...

"We are here to invite you to join us."

The Aleph civilization introduced a very huge plan: they actually wanted to make the entire galaxy, every planet with intelligent life, into a standard intelligent unit.

"...Then these standard units are connected in series through the superluminal network system to form a Gaia creature at the level of the Milky Way!"

"Yes, Gaia creatures, have you heard of it? It's a kind of group intelligence. The intelligence level of this kind of group life will increase with the number of species."

"Each different intelligent creature will provide Gaia with its own intelligence, and then become a whole."

But the galaxy-level Gaia creature is not the end. The ultimate goal of the Noah faction is to connect the entire universe and create a cosmic-level group creature-Noah!

"How intelligent this creature will be! At present, Noah's level of intelligence is already a level nine civilization! Her potential is still growing."

"If your civilization is willing to participate in this great cause, we are grateful. Our single civilization is too weak, and even a small galaxy will take us tens of thousands of years. .”

Facing such a huge monster, Zhang Yuan suppressed the shock in his heart and asked, "But once we do this, if we assimilate all the low-level civilizations, wouldn't it be difficult to create a new fifth-level civilization?"

"Yes, that's true. But you have to know that the vast majority of civilizations in the universe are perishers. They have no room for improvement. They have no ideals of their own, and they don't explore the meaning of life. Give them Assimilated, isn't it more meaningful to become a part of Noah? And when we encounter a very potential fourth-level civilization, we don't mind excluding them from the plan... As Noah of the ninth-level civilization, one more There are not many smart units, and one less is not less.”

Zhang Yuan asked again: "Occupying a large amount of territory, the living space of other civilizations has been compressed, won't they sit idly by?"

The Aleph civilization said very domineeringly: "According to the known information so far, high-level civilizations with contradictory concepts are not as strong as ours. As for the other nine-level civilizations... or even greater civilizations, they each have their own goals. , can understand our approach."

"Is there a more powerful civilization?"

"Of course it exists. And under normal circumstances, we won't occupy the entire universe. Like the Large Magellanic Cloud next door, we won't occupy it. We just assimilate some perishers."

Aleph Civilization left after explaining his ideas, leaving only Zhang Yuan, who stayed in a daze...

Will humans act to stop this crazy civilization? It doesn't.

Moreover, human beings have jumped out of the chessboard, from chess pieces to chess players. It seems that the Aleph civilization will not take the initiative to attack humans.

In fact, if superhumans are really promoted to a fifth-level civilization, there is no problem at all if they want to shelter the earthlings who have already sunk.

For the Noah faction, there is not much difference between one more or one less standard intelligence unit, just like a cell inside the human body, it doesn't matter if one lives or dies, and you don't even feel it yourself.

The Aleph civilization will not confront a fifth-level civilization because of such a trivial matter, it will only waste its time for no reason.

However, after being exposed to so much information at once, Zhang Yuan's mentality has undergone a miraculous change...

The sky that human beings have seen before is really too small, and they are always entangled in some insignificant things. But now, after receiving this series of invitations, it seemed like a frog jumped out of the well, and the sky he saw suddenly expanded countless times!

Next, the ball of light actually lit up again, and it was a faction called Engineers who sent an invitation to him.

The engineer said ambitiously: "We want to know the shape of the universe! This is our goal! This shape refers to an abstract description at the mathematical level! We have designed a lot of experiments, and you will definitely be interested!"

"The universe is at a high latitude. Even for a very powerful civilization, it is difficult to see the whole picture of the universe. So what is the shape of the universe? Is it the shape of a saddle surface, the shape of a swimming ring, or a spherical shape?"

"We devised some special methods for this..."

Zhang Yuan roughly understood the meaning of this "engineer".

Measurement.

They are measuring the entire universe through super technology!

To give a simple example: Galileo, the great navigator at the time, proved that the earth is a sphere through the act of sailing around the world.

Actually, this proof is not rigorous.

Being able to travel around the world shows that the earth may be a sphere, but it may also be in the shape of a swimming ring. After all, the shape of the swimming ring can also travel around the world.

So how to exclude this option? The famous Poincarai conjecture (theorem) can rule out this point.

To make a simple analogy, put a rubber ring on a ball, and then slowly shrink the rubber ring upwards, and the ring will shrink into a point at the pole of the ball;

But if you put a rubber ring on the swimming ring, no matter how you move it and shrink it, it is impossible to shrink it into a point.

Describe in mathematical language: Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere. This theorem also holds for high-dimensional spaces.

The tools used by "engineers" are similar mathematics and super scientific and technological strength.

According to the engineer's description just now, they created the giant gravitational source.

"...If you observe the source of great gravity, you can know that it is the special experiment we initiated to measure the shape of the universe, and we also used the universe's natural veins, cosmic strings. However, research in this area has not yet A real conclusion, with several different points of view."

"If you are interested in this aspect, you can consider joining us."

After saying this, the sphere of light represented by the engineer left, leaving only Zhang Yuan to stay where he was, recalling the description of this super civilization just now.

It's incredible.

Zhang Yuan was very excited.

The "Giant Attractor" refers to a certain gravitational anomaly located near the center of the local supercluster, and galaxies about hundreds of millions of light-years away are also affected by it!

All galaxies are redshifted, and Hubble's law shows that they and the earth are receding from each other, but the redshift reveals this unreasonable phenomenon. The original human beings had no idea why this happened, but now they have come to a conclusion: it was a super experiment by the "engineer" faction.