In 1960, Freeman Dyson proposed a new theory of artificial celestial bodies, that is, the nodes formed by satellites orbiting the sun, completely surrounding the star through an energy-absorbing device, and obtaining most or all of its energy output.

To put it bluntly, this is a natural nuclear fusion reactor that uses stars as a power source, taking away all the stellar energy of an entire star system, leaving nothing behind.

Dyson believes that the energy contained in a planet like the Earth itself is very limited, far from enough to support the development of civilization on it to an advanced stage;

In a star-planetary system, most of the radiant energy from the stars is wasted, and the planets of our solar system currently receive only about 10 ninths of the solar radiant energy.

A highly developed civilization must have the ability to surround the sun with a huge spherical structure, so that most of the sun's radiant energy is intercepted, and only in this way can it support this civilization for a long time and make it develop to a sufficient height.

Dyson believed that such structures were the logical necessity of civilizations that had been in the universe for a long time and whose energy needs were rising, and he suggested searching for such artificial celestial structures in order to find extraterrestrial supercivilizations.

According to Kardashev's three-tier civilization grading theory, civilizations that have mastered the ability of the Dyson sphere, that is, civilizations that can collect energy from the entire star system, have reached the second level of civilization.

It's just that Shen Feng understands what is going on, what the hell is this reverse Dyson ball that wraps his planet?

Although it can absorb all the radiant energy of the stars emitted to this planet, greatly improving energy efficiency, it will also cause extremely serious problems such as environmental degradation.

The key is that if there is a similar technology, it is better to build a solar power plant in space to send energy to the earth in reverse.

After all, space is definitely big enough to build some power stations of extraordinary size.

The construction of this reverse Dyson sphere is as outrageous as a person who has mastered the technology of rocket launching, but then attaches this thing to a bicycle to accelerate.

Wrong...... Something is wrong...... Completely illogical......

Shen Feng frowned.

Being able to build such a huge reverse Tyson sphere in near-earth space orbit also shows from the side that the human civilization in this world already has enough aviation technology, and there is no need to spend time and effort building such a thing for a little energy.

The huge amount of helium-3 on the moon alone is enough for Earth's civilization to use controlled nuclear fusion technology to improve by an order of magnitude, and those energies can far exceed the energy base that humans can obtain from sunlight.

Now that I think about it, it's no wonder that the humans of this world regard the Salvation Army and their commanders as villains.

After all, it suddenly obscured the sky and then disappeared completely, and so many monsters were created, allowing human civilization to decline, if it was said that it was the whisperer who did it, Shen Feng believed it.

At this point, perhaps only by directly assimilating and devouring this reverse Dyson ball can we find the reason behind this.

Shen Feng's thinking tentacles instantly released the command along the Heavenly Gray Tide Tower.

Immediately, at the point of contact between the Tower of Grey Tide and the reverse Dyson Sphere, a huge cluster of nanomachines began to devour and assimilate the Dyson Sphere.

"Xiao Feng, it's a bit of a problem, you take a closer look at the materials used to build this reverse Dyson ball." Jingwei's voice came again, and at this time, her main body of consciousness had entered the Tower of the Gray Tide, and she controlled the Gray Tide to swallow the reverse Dyson Sphere that surrounded the entire earth.

Shen Feng immediately probed his consciousness tentacles as well and quickly discovered the problem.

The material that makes up the reverse Dyson sphere is extremely hard and dense, restructured and stable at the molecular level, and the structure is extremely familiar.

"It's ...... A giant grey tide in its dormant period! Shen Feng frowned and said.

What a reverse Dyson ball, it is all too familiar to him.

This is simply a super construct made up of Grey Tide!

It's just that unlike the gray tide he has now mastered, the gray tide in this reverse Dyson sphere has undergone a subtle structural adjustment, and this structure itself has the effect of absorbing and shielding energy.

At the same time, in addition to this layer of reverse Dyson spheres several meters thick, there is also a layer of graphene material with superconducting properties, which I don't know what it is used for.

"There's a lot of cavities and buildings inside this reverse Dyson sphere that are all over the sphere, and I suggest you'd better come up and have a look." Jingwei's voice became much more serious.

Shen Feng also looked solemn and looked around.

Just under this Gray Tide Tower, thousands of survivors have been gathered, almost the remnants of the entire Sea City.

At this time, dozens of quantum ghosts were still scattered around the city, passing through the walls and heading towards the Tower of the Grey Tide.

Without the slightest hesitation, Shen Feng immediately controlled the Gray Tide tentacles to use the core of the quantum force field to annihilate these quantum ghosts and dissipate them in the void.

At this point, there are no quantum ghosts left in the ruins of the entire sea city, and judging from the movement speed of quantum ghosts, there will be no new quantum ghosts for at least a few days.

Humans here are safe for the time being.

He casually inserted the metal rod embedded with the core of the quantum force field in front of the girl named Xiaocao, and said to Jingwei:

"Alright, take me up."

As soon as the words fell, the Gray Tide Base under his feet immediately squirmed, directly enveloping Shen Feng into it, and then transporting his entire person to the core of the Gray Tide Tower on the side, and transported it upwards like an elevator.

Looking at the still dark world through the outer wall of the translucent Gray Tide Tower, listening to the whistling sound in his ears, Shen Feng couldn't help but sigh in his heart.

Speaking of which, the space elevator is the original intention of nanomechanical cluster technology.

The gray tide is a by-product of the serious technical accident of nanomechanical cluster technology.

Creation makes people, nothing more than that.

As Shen Feng ascended, the entire Grey Tide Tower was also rapidly changing, and more Grey Tide gradually attached to the creations above by devouring the reverse Dyson Sphere above.

The bottom of the Tower of the Grey Tide was also like a foot, and it began to be retracted.

Right in front of the eyes of the thousands of survivors, the huge Tower of Grey Tide rose so rapidly, as if it were a tear of the sky that had been put away, starting from the foundation and leaving the ground and disappearing into the night, leaving only smooth ground.

The ruins of the buildings that once existed there have completely disappeared.

The silver-white light that had originally emanated from the Tower of the Gray Tide no longer flickered, and the entire ruins of Haicheng fell into a dead darkness again.

Only the metal staff that shimmered blue in front of Xiaocao was still glowing steadily, illuminating the surrounding area of tens of meters.

After the scene just now, everyone present at this time already understood that that blue spherical stone could kill evil spirits!

Whoever masters this "magic staff" will be able to become an uncrowned king in this endless darkness!

Everyone present looked at the "magic staff" with greed in their eyes, but for a while, no one dared to act rashly.

After all, the man just inserted this "magic staff" in front of Xiaocao, and it seemed that he gave this thing to her.

That man was too mysterious and powerful for anyone to disobey him.

The girl Xiaocao was a little dazed at this time, and she didn't understand why the other party had put such a powerful weapon in front of her.

It's just that the long life in the last days has already taught her what it means to seize the opportunity, and she immediately grabbed the "magic staff", waved it lightly, and stood among her own people, and her family also surrounded her and protected her in the center.

Then everyone looked up at the dark sky, where a silver point of light appeared, which was the direction in which the mysterious man had disappeared......

The speed at which the Tower of the Grey Tide was used for transportation, coupled with Shen Feng's own extremely strong physical fitness, and the protection of the Grey Tide Battle Armor, he had quickly traveled a distance of thousands of kilometers to the reverse Dyson Sphere device at the top of the low earth orbit.

The gravity here was relatively weak, and Shen Feng walked out of the Tower of Gray Tide with light steps, and what appeared in front of him was a place similar to a corridor.

At this time, the surrounding metal structure had already been swallowed and replaced by the gray tide under his control, emitting a glowing white light, and the lights were bright.

However, since he didn't know what this thing was used for, although Shen Feng controlled the gray tide to devour those dormant gray tides, he still constructed it according to the original microstructure.

As he walked down the empty corridor, he discovered that there was still thin oxygen in it, and that it had an oxygen supply system, apparently built as a space station or something, and that it was planned to be lived in for a long time.

"Jingwei, how's it going, are there any new discoveries?" Shen Feng asked Jingwei as he walked along the empty metal corridor.

Jingwei was rare to be serious a few times, and said:

"It's a bit big not yet, and it would take a long time to devour it exponentially, but I've found a lot of helium-3 and some elements unique to the moon rock."

Shen Feng nodded:

"Understood...... I said that even if such a thing were actually made on Earth, it would not be easy to transport it into space...... It turns out that they swallowed the moon......"

Jingwei's voice came again, this time more solemn:

"I suggest you'd better check out this ......"

As he spoke, an elevator door opened in front of Shen Feng, ready to take him to the outer edge of this reverse Dyson ball.

"What are you looking at?" Shen Feng walked into the elevator and asked with some confusion, "Did you find my relics in this world?" You say that if I die, will there be a similar 'me' who will go to Minecraft to do a mission? Wouldn't it be embarrassing too? ”

As he spoke, he had reached the outer edge of the reverse Dyson sphere, and a window quietly opened, allowing him to see through this window made of transparent nano-metal that the starry sky beyond Earth had not been spied on for hundreds of years.

Shen Feng glanced at it, and immediately a spirit closed the window and retracted his head:

"Excuse me."