The stars, but they become the gray wind

"Just like those fellows who launched relativistic particle beam weapons from an 80-kilometer-long gas giant accelerator to bombard asteroids, apart from experiencing the feel of using such a thing, there's basically no other use for ultra-relativistic electron beams or other particle beam weapons."

"The augmentation clouds we've built near the stars in each galaxy are in a similar situation. Aside from occasionally using their gamma-ray lasers to accelerate light sail spacecraft or transmit energy and communicate, they're essentially useless as powerful weapons. After all, there are no enemies, so what's the point of having weapons?"

"Um……"

Regarding the conclusion of the red-haired cat food Salem, Kylias shrugged noncommittally.

Just as the red-haired cat lady said, the Dyson Cloud is not only an energy infrastructure, but also a powerful weapon in itself. For example, in the Kylias twin star system in front of the two, there are hundreds of billions of Dyson Cloud solar energy collection facilities. Each Dyson Cloud collection module has a weapon-grade laser in the gamma-ray band. When thousands or tens of thousands of Dyson Clouds gather together, the gamma-ray lasers on the surface will form a phased array laser emission mode. When these lasers are started, they will emit a beam with a diameter and coverage comparable to that of Jupiter. Under observation instruments, the brightness will be comparable to that of a supernova. The super Dyson Cloud laser will completely transform the target it hits into an atomic state with its current high temperature and high energy. As long as the target is not If it is made of neutron degenerate state, or full electromagnetic wave frequency and fully reflective materials such as color nuclear force materials, then Kylias dares to guarantee that nothing harmful can enter a galaxy controlled by a sky star civilization, and all the airspace within tens to tens of light years around it. Before they approach the galaxy, they will be affected by the phased array, giant gamma-ray band Dyson cloud laser with an emission angle and an impact range comparable to the diameter of Jupiter. Under the firepower comparable to 20% of the energy output of a star, basically nothing can survive. Even if the opponent's spacecraft is a huge rocky planet, the Dyson cloud laser array distributed in each colonized galaxy can easily destroy all hostile targets before they approach the galaxy, leaving no trouble at all.

In addition to the Dyson Cloud gamma-ray laser and relativistic particle beam weapons, which are closer in status and use to close-in weapon systems and conventional naval guns in galaxy defense, the current Sky Star civilization actually has another type of interstellar strike weapon that is closer in use to intercontinental missiles. However, since there was no demand for this in the past, this type of weapon has rarely been manufactured or used, except for being used to hit asteroid targets a few times and test the shortest time required to completely shatter a planet.

"A relativistic missile is an intercontinental missile-class weapon that travels at nearly the speed of light and is used for interstellar strikes." Kylias called up the footage of the experiment on a holographic display in front of him.

This relativistic missile, which was carried by the spacecraft and accelerated to a speed close to the speed of light, suddenly exploded from the inside without warning when it approached the target asteroid. The warhead with a total mass of thousands of tons suddenly exploded from the inside without warning. Kylias knew that the reason why the warhead of the relativistic missile in the picture, which was made of zero-element matter, exploded before hitting the target was because the internal charge of this warhead was an antimatter bomb composed of more than hundreds of tons of antimatter lithium. Millions of fragments traveling at the speed of light hit the target asteroid in a violent flash. At that moment, it seemed as if a supernova appeared in the space. All the matter of the entire asteroid was completely converted into the purest energy under the impact of millions of zero-element matter fragments at a speed close to the speed of light. After this violent flash, the asteroid with a diameter of more than 800 kilometers had completely disappeared in the universe.

"I remember someone seemed to have simulated a scenario?"

"Which scene are you referring to?"

"That simulation where they used a large number of relativistic missiles to win by sheer quantity, those enthusiasts among us seemed to have done quite a few actual simulations in the virtual world created by quantum computers, right? What scenarios did they presume to be?"

"Oh, right... attacking a planet... using relativistic missiles to defeat the enemy by sheer volume. No need for any kind of aiming or precision, just smash it in."

"Their simulation seemed to involve launching over ten thousand relativistic missiles at once, set to proximity kill mode. After launching tens of thousands of relativistic missiles close to the target, they would explode simultaneously, generating trillions of fragments traveling at near the speed of light, completely covering the entire area within the gravitational radius of the planet or star's Hill sphere..."

"Isn't this method too violent?" When the red-haired cat girl mentioned this crazy idea, she couldn't help but wipe the non-existent sweat from her head.

"And launching tens of thousands of relativistic missiles at nearly the speed of light at once—while this level of delivery isn't a big deal for the current Sky Star civilization, isn't it a bit excessive?"

"And they're setting it up for close-range bombing? Our compatriots are quite talented in art... Using over a trillion light-speed fragments... Even if each fragment only weighed a few hundred kilograms to a few tons... well, if it hit a planet directly, it would be enough to turn the entire planet into a pile of shattered debris scattered across the universe. Not to mention they want to destroy more than just planets..."

"I think it's okay... didn't our sisters say something after they arrived?"

"The saying goes: When you're desperate, you should use tactics to infiltrate and provide firepower coverage!"

"For an interstellar civilization, shouldn't it be basic to be able to provide firepower coverage across an entire star system?"

"No, I simply think... this kind of thing is really useless at this stage. We don't have any enemies, at least not in this half of the galaxy."

"What's more... compared to thinking about how to use relativistic missiles to blow potential future enemies into a complete periodic table of elements, I think it is better for us to focus on the current project. After all, as long as the construction and startup of the macro CTC is completed, it will be clear whether there will be any threats to us in the future." The red-haired cat girl brought the topic back to the closed time-like curve computer project that was being carried out in front of Kalyas. Whether for the Kalyas star system or the entire Sky Star civilization, at this stage, in addition to the important basic project of laying the star gate, another equally important task is to complete the construction and startup of the closed time-like curve computer in front of them.

The expansion and growth of civilization demands insatiable computing power. Both conventional von Neumann computers and quantum computers have their own computational limits. To this end, the Sky Star civilization has even created and mass-produced black hole quantum computers capable of reaching the computational limits of current physical theory. While the current Sky Star civilization possesses superluminal communication channels—wormholes—that can integrate multiple, distant computers into a computing network, this does not fundamentally resolve the computational limitations common to all computers. Anchored wormholes, as channels for superluminal information transmission, do not directly address this computational limitation. While constructing a stellar-sized giant computer like the Stellar Nesting Doll Brain is not impossible for the current Sky Star civilization, its actual operating efficiency is truly appalling.

If addressing the current limits of computing power isn't possible through spatial manipulation or improvement, then the only option is to manipulate time. As we all know, any superluminal motion is essentially a form of time travel and a time machine, whether traveling to the past or the future. This forms the basis for the macroscopic CTC computer. By relying on infinite time and possibilities, exhaustive calculations are performed, ultimately finding an answer. This answer is then transmitted back in time, allowing the algorithm to find the answer. If this solution fails, the calculations continue forever until a dead end is reached, resulting in the device's shutdown. Of course, a greater problem with this closed-timelike curve computer is that, in infinite time, even the smallest probability becomes inevitable due to the infinitely large cardinality, ultimately leading to an unacceptable error rate in the output, potentially rendering the closed-timelike curve computer useless.

Building such a closed time-like curve computer is not a particularly difficult engineering problem. One only needs to drag the anchored wormhole at a speed extremely close to relativity to make it jump in time, and finally arrange their positions in space and time into a ring to form a closed time-like curve. In this way, a macroscopic CTC computer based on the time travel mechanism is created, allowing the Sky Star civilization to know all information about the past, future and present.

Compared to computers based on time travel mechanisms with truly infinite storage space, closed time-like curve computers built in this form have storage space limitations. Therefore, in reality, this type of computer cannot achieve truly infinite computing power.

However, the computing power of this type of computer far exceeds that of various Turing machines whose computing power is limited by computing limits.

If such a macro-CTC computer cluster is built and operated within the mother galaxy, it would obviously be a very dangerous and unwise move. As the mother galaxy with the most densely populated population in the entire civilization, for safety reasons, various terrible accidents involving the time and space levels that may occur during the operation of such macro-CTC computers will cause very serious damage to the entire star system, such as some catastrophic accidents that will cause astronomical-scale damage to celestial bodies within the galaxy.

The huge amount of photons generated by the massive data processed by the closed time-like curve computer during its operation will be removed from storage as useless data and thrown directly into space. In this process, at the very least, a gamma-ray burst comparable to the merger of neutron stars and supernova explosions will be produced. At worst, the excessively high information density will cause the space-time region in which it is located to collapse due to gravity, directly forming a large number of massive black holes. If this process is handled by special means, it can create a small-scale Big Bang and produce unimaginable energy of high power out of thin air. In other words, all computers that use time travel for calculations not only do not need external energy to continuously supply them with power, but on the contrary can be used as a huge source of energy. When necessary, this method can even be used to directly create space-time with different physical constants for special needs in various aspects.

Compared to the time bridge spanning the present and the future, which takes hundreds of years to build in subjective time, such a closed time-like curve computer is obviously a more cost-effective solution in terms of engineering difficulty and time cost.

On the outskirts of the Kelias star system, hundreds of small star gates in an open state have been placed in place. In the center of each star gate, a vortex-like water-wave-shaped wormhole boundary is quietly rotating.

As the experiment began, the stargates and anchored wormholes arranged in multiple rings began to slowly accelerate under the action of the tugboat's inertia-free engine. Due to the danger of this experiment, the automated unmanned tugboat that relied on the tractor beam to drag the wormhole did not choose to accelerate to near the speed of light in the shortest time, but instead gradually increased its own speed and the speed of the artificial stargate and wormhole behind it.

“0.1c…0.2c…0.3c…0.4c…0.5c……0.6c…0.7c…0.8c…0.9c！！”随着数百座人工星门与锚定虫洞的航行速度超过0.9c，呆在远处的塞勒姆号观察着实验现场的凯利亚斯禁不住激动的情绪倒吸了一口冷气。

“0.92c…0.95c…0.98c, 0.99c!!!”

[The tugboat has reached its maximum speed... The wormhole dragging experiment was a success]

After hearing the news of the successful experiment broadcast at the experimental site, Kylias was so happy that he almost jumped up from his chair on the Salem Cambridge.

On this day, the first closed time-like curve computer in the entire universe was officially born. At the same time, in a true sense, the Tree of Life and the Sky Star civilization also truly approached omniscience of the laws of the universe at this moment.

Chapter 152: Message from the Future (6000 words)

At the same time as the first closed time-curve computers of the Sky Star civilization were taking shape, in the training shooting range on the Gray Wind mothership in the orbital star ring dock in the Sky Star mother galaxy dozens of light years away,

A green beam of light hit an iron metal plate hundreds of meters away. The moment the beam touched the metal plate, the metal plate, which was nearly half a meter thick, began to decompose into a large pool of powder. The iron element that made up the metal plate was completely disassembled at the atomic level the moment it was hit by the green beam.

Carlisle, who was wearing goggles on her face, lowered her right hand that was pointing at the metal plate like a pistol. Next to her, a Gaussian disruptor gun that was suspended in the air and extended from the water-wave-like wormhole interface was also retracted into the water-wave-like micro-wormhole interface.

"Huh..." Carlisle let out a long breath, walked up to the metal plate that had turned into a pile of atomic powder, grabbed a handful of powder from the ground, brought it close to her eyes, and observed it carefully.

The metal plate that was hit has completely turned into a pile of discrete iron atoms. After observing it carefully for a while, Calisi directly swallowed and assimilated the handful of metal powder in his hand with the nanomachine in his body. After the iron powder in his hand was completely swallowed by the silver-white nanomachine, Calisi rubbed his hands casually a few times and left the shooting range in the spacecraft where he used to test individual weapons.

After testing the weapons, Kalisi planned to go to a nearby lounge to eat something and relax. Due to the huge size and complex structure of the Grey Wind mothership, whether it was Kalisi or the other members of the foursome, or the Sky Star people who often came to play on the ship and had a good relationship with the foursome and Luoying, the way to move around the ship was to teleport directly through micro wormholes. Although the ship had magnetic levitation rail trains and omnidirectional elevators to facilitate the movement of personnel, compared to micro wormholes that could directly reach the cabins and corridors they wanted to go to instantly, everyone obviously preferred to use teleportation to move around the ship.

A two-dimensional portal with green hexagonal patterns appeared in the air in front of Kalisi. Before stepping into the portal, Kalisi frowned and looked at her own portal.

"Tsk... this effect really can't be changed?"

"Why is it that the effect of other people's single-person teleporters is a wormhole boundary with ripples like a whirlpool, but mine looks like the Death Mark unit of the Necrons? It feels awkward no matter how I look at it..." Kalisi complained boredly, and finally stepped into the portal obediently.

"Really, I don't know why... Capote refuses to help me change the effect of this portal." Accompanied by a few dissatisfied murmurs, Carlisle came to a lounge about one kilometer away from the shooting range. This lounge not only has sofas and chairs for rest, but also a complete molecular printer and dining table, as well as various entertainment facilities, including the Sky Star civilization's most common life-sustaining hibernation chamber and multi-functional brain-computer interface used to allow consciousness to enter the virtual world.

"Give me two sandwiches and a glass of orange juice with ice." Carlisle walked to the molecular printer and said to the molecular printer's identification interface.

After Carlisle finished saying this, the molecules in the printer's printing device began to release a certain amount of nanomaterials, and edited and converted them into what Carlisle wanted at the molecular level. After a while, two sandwiches on a tray and a glass of orange juice with a few ice cubes appeared at the food outlet below. Carlisle whistled happily and picked up the tray, intending to sit on the sofa at the back and enjoy it slowly.

"I'm really quite relaxed... and I don't know why I asked for two sandwiches... maybe this is just a coincidence?" Just as Carlisle turned around, a voice that was very familiar to Carlisle, but also surprised her, suddenly rang out behind her.

As soon as she turned around, Carlisle saw someone she had never expected. A purple-haired girl who looked exactly like her was sitting on a sofa not far from the molecular printer.

"You...this?!" Seeing the person in front of her who looked exactly like her, Carlisle was so shocked that the plate almost slipped out of her hands.

"Don't be so surprised...I...Is it strange that I'm here?"

"No...if it's at this point in time, to be more precise, it should be...my past self?" The purple-haired girl who was sitting on the sofa with her legs crossed greeted Carlisle in a very familiar manner.

"If I'm not mistaken, at this point in time... our 'sisters,' the Sky Star civilization's closed time-curve computers should have just been built and started operating, right? Am I right, my past self?"

"Wait... a closed curve-like computer... is that possible?"

"That's right... I am you from the future... That's why I told you not to make a fuss... Since you know that Sky Star's superluminal technology will inevitably lead to the product of a closed time-like curve computer, there is no need to be so surprised to see me here, right?" said the future Calisi to the present Calisi, who was sitting on the sofa with her legs crossed.

"Don't just stand there... Didn't you just make two sandwiches? How about we sit down and eat while we talk?"

"What to talk about?" Carlisle was a little confused, looking at the other self on the sofa.

"What else can we talk about? Of course, it's me... or our future..."

"I have something to give you about our future." The purple-haired girl waved to her past self who was still standing in front of the molecular printer. Carlisle, who was invited by her other self to sit on the sofa not far away, also put the tray on the coffee table in front of her. The future Carlisle picked up one of the sandwiches from the tray familiarly, put it to her mouth and took a bite.

"Hmm... As expected... Even the fillings haven't changed..." Future Carlisle looked at the bacon and eggs in the sandwich and nodded. It was the same scene as the time in her memory, even the type of heated fillings in the sandwich hadn't changed.

.........

"So... you really are my future self?"

"Of course...would I do something like this to deceive myself?"

"So you've time-traveled back to the present, at the very moment when the first closed-curve computers of the Sky Star civilization were activated... Is there something important going on?"

"Nothing... I just wanted to save my future self some trouble."

"Easy?" Carlisle narrowed her eyes.

"To be more precise, it's to save you some time. This thing is going to happen sooner or later anyway, so why not just tell your past self the location and specific time? There's nothing wrong with contacting them a little earlier..."

"Don't worry... nothing bad will happen in the future. This is actually a good thing for the Sky Star Civilization and you. Even if I hadn't come here, I told my past self that the Sky Star Civilization would have encountered them sooner or later, or discovered them during a calculation on a closed time-like curve computer."

The purple-haired girl from the future pulled a folded note from her pocket, slapped it on the coffee table in front of the sofa, and pushed it in front of her past self.

"What is this?" The current Carlisle picked up the note and opened it. There was a string of numbers written on it.

"A coordinate... As for what's at this coordinate... you can go and see for yourself..."

"Isn't there anything dangerous?"

"Don't worry...it's not a dangerous thing...and there's also this..." The purple-haired girl from the future flipped her left hand, and a data chip lay in the palm of her hand.

"Here are some detailed information about the object at that coordinate."

"Part?" Now Carissa noticed the word in her previous sentence.

"Hmm...yes, part of it. I suggest you go to that coordinate in person to see the details."

"Why is there only partial information about what's there?"

"Can't you give me a complete message?"

"It's not that I don't want to give it to them. It's actually mainly because this is their wish... uh... to be more precise, it's their future selves."

"Wait... So, what you're saying is that the thing at that coordinate is alive?"

"Yes, and they're not just alive. There's a very complete and advanced civilization at that coordinate. They'll contact you one day in the future. I've traveled back to the present through time, and I've simply helped you bring that time forward a little bit."

"As for why the data storage only contains a portion of their information, it's because that's their own will. I suggest you and the sisters of Sky Star see the more information with your own eyes."

"By the way, I have to remind you... they're quite cute, so please don't behave disrespectfully when interacting with them."

"Of their own accord?"

"Let me ask...what is our relationship with them in the future?" the purple-haired girl of the present asked her future self.

"It's a relationship that goes beyond allies. We basically trust them completely, even though we are two completely different civilizations and races. And... they do have a certain connection with us."

"Origin? What kind of origin?"

"An unexpected connection... to Cabot."

"Cabot? Could this be another civilization or sister she created?"

"Not entirely, but she did interfere with the development of this civilization to a considerable degree. However... compared to the interference and training of her own daughter, Sky Star, her process and methods of interfering with them seemed rather crude and crude."

"Not to mention... Cabot even used a pseudonym while interfering with them... It makes me wonder how many pseudonyms she's used before."

"Never mind, let's not talk about it anymore... Anyway, there's a very friendly and advanced civilization at that coordinate, one that will become our most trusted ally and friend in the future. At this point in time, they, like the Sky Star civilization of the past, are limited to traveling below the speed of light."

"Because they are located very far from both Earth and the local bubble of the Sky Star civilization, according to Sky Star's current expansion and development, we should encounter them in about 1200 years, and discover the connection between our two civilizations through subsequent contact."

"And then?" Carissa asked with anticipation.

"Then... after discovering our connection and our long interactions, a process that probably took several decades, Sky Star's own closed time-like curve computer, through receiving and observing future information, discovered that from the moment they came into contact with us until the day the universe ended, they had no conflicts of interest or other contradictions with us. They will become our closest allies and friends throughout the long history of the universe. Furthermore, they are also an indirect product and civilization of Cabot."

"So... we gave them the superluminal technology that could create a closed-time-curve computer, without any strings attached."

"Strange, isn't it? At this point in time, it's hard for me to understand the idea of ​​handing over your most advanced and important technology to a strange civilization you've only just met. You're worried about whether this technology, which can create closed-time-curve computers and time machines that rewrite the laws of causality, would pose a threat to us if handed over to other civilizations."

"Hmm... I understand your concerns. After all, I'm your future self... You're worried about a hypothetical conflict or war between two or more civilizations equipped with closed-loop time-like computers that can rewrite the laws of causality. Both sides will be trapped in a completely transparent and endless stalemate, because your future self can transmit information or other things to your past self at any point in time."

"Whether it's the actions and deployments of another civilization or the trajectory of a future war, everything will be completely transparent to both sides. Based on this information, each side can frantically modify the timeline to ensure victory, leading to an endless stalemate in any form of interstellar war."

"This is what you were worried about...right?"

"Hmm..." The purple-haired girl nodded silently.

"We're very lucky... Because of Cabot, the civilization at the coordinates I gave you has no hostility towards us or the Sky Star civilization, nor does it have any conflicts of interest or other contradictions. Among all the results and possibilities calculated by the closed time-like curve computer, the probability of them engaging in war or conflict with us is... zero."

"This..." The purple-haired girl didn't know what to say for a moment.

"Surprised, huh? You'll know the answer once you see them, their current state, and their past."

"By the way, it's best to go with the sisters from Sky Star this time. The two civilizations will eventually come into contact anyway, so it's better to do it sooner rather than later. Their research in related fields won't have to spend so much time on the superluminal path."

"We are of the same origin and have a connection. Why not just give a hand while visiting? Besides..." Future Calisi looked at her past self with a bewildered look on her face and continued.

"Besides, at this point in time...didn't I just finish delivering a package to my blood-related sisters? It wouldn't be a big deal if I and my sister were to deliver a faster-than-light package to our future friends."

"Why do I feel like a delivery boy... I just delivered a package to my sister, and now I have to deliver a package to my future friend?"

"Don't underestimate this friend... They have great potential for development, and in the future... They may provide some kind of assistance to the Sky Star civilization." Future Calisi said as she finished the sandwich in her hand, took the orange juice with ice cubes on the tray, put the straw to her mouth and took a sip.

"It tastes better with ice cubes..." The purple-haired girl from the future leaned back on the sofa with a comfortable look on her face.

"Hey, that's mine!" Carlisle protested as the other person snatched her orange juice away.

"What's yours is mine, isn't it? I'm your future self, so if I drink it, it's the same as if you drank it. Aren't your things still mine?"

"You!" Carlisle didn't know how to refute this for a moment, because in a sense, the self in front of her was not wrong. However, she felt a little uncomfortable when she thought about her future self running over to snatch the drink from her present self.

"If you want a drink, take it yourself. Don't steal it from me!" The present Kallis reached out and snatched the drink from his future self.

"Don't be so stingy... We are the same person anyway, and your things are essentially mine!"

"That doesn't mean you can grab your past drink, right? If you want to drink, you pour it out yourself. How fun is it to grab food from your past self? And it's your past self."

"Anyway, we're both beautiful girls now, so it's fun to tease ourselves a bit, isn't it?"

"Ah?" The present Carlisle was very confused as she looked at her future self who was shamelessly approaching her.