In the year 215 of the era of crisis, in May of the 2nd year of the era of stars, when the Earth Federation was busy recovering and improving productivity, the Star Alliance began to frantically point to technology.

The radius of the four-dimensional fragment is about 40 astronomical units, which is equivalent to the solar system, and with the infinite details of the four-dimensional space and the characteristics of God's vision can be possessed by three-dimensional creatures, the Star Alliance has built an astronomical observation system.

God's vision, to put it bluntly, is to stand high and see far away, standing in the four-dimensional space to see the starry sky of the universe, it is a panorama, just like a person looking down at a painting, can see the whole picture of the painting from a fixed point.

This astronomical observation system has a wide range of observation that is unimaginable to human civilization: it receives light in a range as large as that of a solar system, and because of the infinite details, people can easily observe all the information carried by the beam.

This information is processed by a computer to form a clearer image.

A month ago, the Star Federation observed an encountering interstellar war thousands of light-years away.

Two huge fleets fighting in the equivalent of five solar systems, both possessing light-speed weapons and the ability to defend against light-speed weapons, shocked scientists.

The war came and ended suddenly, and after the star was destroyed by one side's lightspeed weapon, both sides had plans to evacuate, and the battleships withdrew in batches in opposite directions.

It takes time to accelerate, and the two sides are wary of each other, so the huge fleet is withdrawn in batches.

However, ten days ago, the Star Alliance observed that the two fleets did not care about anything, but only desperately accelerated and fled.

To this day, no information has come out of that place, like a black hole.

Guo Ruosi, an astronomer who hadn't closed his eyes for half a month and had seen from beginning to end, said: "There are advanced civilizations that have intervened in the war and destroyed the fleets of the two civilizations, and there may be no warships that have escaped the blow." ”

"We should think about what such a weapon is."

"Black holes? Within the Schwarzschild radius, even if the battleship accelerates to the speed of light, it will not be able to escape, and if it is too close, it may be more folded in space due to the huge gravitational pull of the black hole, affecting the power of the curvature engine, making it impossible for the battleship to accelerate to escape speed. ”

"No, no, you come to see this, the attack is coming from multiple directions."

The female physicist of the main commander, Ella said.

The crowd followed the prestige and saw the projected galaxy.

Ella was so excited that she murmured, "This is God's war, and the rules of the universe are playthings..."

"Your horizons are too small, and you only focus on the small battlefields of two civilizations, only the size of five solar systems, and ignore the larger battlefields! The entire universe is a battlefield, and the modern three-dimensional universe is nothing more than a relic of war. ”

"The battlefield of a god-level civilization may be a constellation, a galaxy, or even a supercluster."

"When we zoom in to a light-year..."

Along the fingers, everyone also saw the appearance of 'black holes', not one or two, two or three, but thousands, and these mysterious 'black holes' that swallowed up information were slowly expanding.

It's the same thing, for sure.

Ella slapped the three-dimensional star map flat and asked, "What does it look like?" ”

They were all physicists, and everyone reacted quickly.

Guo Ruosi said: "Two-dimensional ants, three-dimensional people can trap them in the circle by drawing a circle, dimensionality reduction strike, damn, this thing is really cheap, light particles can't completely destroy the planets of the solar system, and the Earth Union will probably be attacked by this weapon." ”

"Oh Maiga, good luck to them!"

The spread of information black holes is very slow, of course, it is on a cosmic scale, everyone silently calculated for a moment in their hearts, and found that thousands of black holes will take hundreds of years to border, which is simply not enough to complete the encirclement of the two fleets.

Yevnochi said: "This time is enough for two fleets to run out, their speed is not slow, they can accelerate to 90 percent of the speed of light in half a month, so this thing has a huge gravitational pull, the gravitational range is very wide, and the escape speed is the speed of light." ”

The escape speed and diffusion speed of two-dimensional are very different, otherwise Cheng Xin would not have seen Van Gogh's "Starry Sky" on Pluto, because if two-dimensional is spread at the speed of light, then the time of seeing it is the time of death.

"This is a weapon to reduce the dimensionality from three dimensions to two dimensions, just like what Ma Liang did to the emperor: throw you into the painting, these two civilizations do not have the ability to reduce dimensions independently, so they are destroyed."

"To report the observations to the commander-in-chief, we must venture into contact with the things left over from those high-dimensional civilizations, and some scholars have long believed that contact with extraterrestrial civilizations is the most variable field in all the possibilities of the emergence of a technological explosion, and human civilization must have the ability to protect itself in a space war as soon as possible."

Tens of thousands of small spaceships have almost explored the debris of four-dimensional space, and of course found the relics of those civilizations.

But I haven't been in contact, worried about accidents, and all the belongings of the Star Alliance may be within the range of the other party's attack.

"Our gene editing technology, the original technical data comes from ETO, Trisolar."

"Yes, it's worth the risk..."

Three days later, the Star Alliance sent an exchange group to the ruins of the high-dimensional civilization, adhering to the principle that big is strong, they tried to get close to the relatively large four-dimensional ruins, which were a big ring.

These ruins are fully enclosed, they are in the four-dimensional space, but the interior is completely invisible, the surface seems to be absolutely smooth, the Star Union did not detect the ruins emitting electromagnetic waves, gravitational waves and other signals, one person thinks it is a dead thing, a tombstone.

"Anyway, how are we going to talk to them?"

"In three minutes, the fleet will use the neutrino communication system to broadcast a self-decorated system based on mathematical laws to these relics, which contains tens of millions of words of the history of human civilization, and if they want to talk to us, they will naturally send a signal to contact us."

More than half an hour later, the delegation boarded the Ring, which looked large and small from a distance, and looked incomparably majestic and penetrating from a distance.

They put on their spacesuits and left the vehicle.

Driver Levin said: "It turns out that the lines on its surface are not circuits, but scratches caused by collisions. ”

"We should probably collect some debris of four-dimensional matter nearby for research, and with the reverse dimensionality technology, human civilization can have the ability to protect itself in the true sense."

"Impossible, you, thin paintings, can't even comprehend the extra dimension of the four-dimensional space, only civilizations that have descended from the higher dimensions can have the technology to ascend to the dimension."

A text suddenly snaps into their conversation, and the Lord of the Rings takes control of the Source Realm through electromagnetic waves, causing words to appear in their minds.

Several communication officers made eye contact, and then meditated in their minds: "Thank you for the reminder, may I ask, what are you?" ”

"I'm a cemetery."

"Whose graveyard? A graveyard of civilization, or a graveyard of a ship's crew? ”

"Both."

"Who destroyed you?"

"The fish that came ashore drained the sea."

"The sea? Up and down, left and right, front and back, three directions of movement, high-dimensional? Shore? Left and right, front and back, two directions of movement, low dimensional? You've been hit by dimensionality reduction? ”

"Yes, but not exactly."

"All civilizations have been hit by dimensionality reduction, active or passive, active civilization can adapt to the world after dimensionality reduction, passive civilization can not adapt, dimensionality reduction is irreversible, the sea will dry forever, at most temporarily create a puddle, survival of the fittest."

The ultimate cosmic war is so violent that it shocks the tiny people.

"In other words, the civilization that descended from the highest dimension is an invincible god?"

"yes, I don't even know where they are."