Because the ghosts were attracted by the other party approaching the late king's tomb, Gu Cheng and Qingyi Zhuse did not encounter any obstacles on the road this time, and there were no more bloody accidents. After testing, they found that there was no energy flowing in the corridor anymore, and instead returned to its original dusty appearance. After there was no need to deliberately walk on the rock wall, Qingyi Zhuse once again showed his full understanding of the terrain, and he did not hesitate when encountering various forks along the way. Although they had walked a long way to avoid the laser, they were not far from the real entrance. Within a few minutes, Gu Cheng followed Qingyi Zhuse to a gate. The surface of the gate is smooth and smooth, and there are various strange symbols and patterns engraved on it, which adds a sense of vicissitude to the whole, but after all, it is still made of some kind of special stone. Looking at it, Gu Cheng couldn't help but be confused. In his imagination, this dominates the entire C area, and is the core inheritance place of civilization with a technological level that may be higher than that of the real earth. Not to mention how high-end and classy it is, it should at least have a sci-fi feel. Although the material of this stone gate is unknown, and it has a sense of vicissitudes of life, if it is placed on the magic or fairy side of the ruins, it can be explained by theories such as "the gods conceal themselves", and it will be inconsistent if you put it here. When I heard Qingyi Zhuse say, "Here, help me, let's push it away," the feeling of disobedience became even heavier, and the expectation in my heart instantly dropped by seven or eight notches, and I couldn't bear it anymore. The resident asked. Qingyi Zhuse was stunned for a moment, but started to laugh. "I think you are simply too deeply affected by inertial cognition." "This place of inheritance is designed to prevent extinction situations, but since the situation has become so bad that most of the civilization has become extinct, they have How can we be sure that there will be descendants who are lucky enough to get all this and then revive civilization? "So, this door is not only the entrance, but also the last tombstone of a race and civilization." While exerting force, he stroked those strange symbols and patterns and said: "These are the language system of their civilization, the epitaph they wrote themselves, and the last message they want to retain." "One Sword , If you want to retain the information as much as possible, what kind of carrier will you choose?" Gu Cheng said. Feeling Shimen move back a little bit, he was talking to Qingyi Zhuse. He used to make a living as a professional gamer. He had a very free schedule and read a lot of miscellaneous books. He was considered a pseudo-civilian. After thinking about it for a while, he said: "According to scientists' conjectures, the new generation of storage equipment should be quantum memory, right?" "It's a bit magical that a whole large library can fit in a space the size of a grain of rice. In Xia fantasy novels, it feels like a world is formed by a powerful figure. It is said that this kind of equipment has made some breakthroughs. Since the technological civilization here can even make bug-like things like virtual backpacks, there should be something similar. Technology.¡± ¡°Haha.¡± Qingyi Zhuse, who was still sulky before, quickly adjusted his mood. At this time, he seemed to be amused and said: "Yijian, you know a lot." "Yes, the quantum storage device is probably us Under the current scientific and technological conditions, it is the limit that can be reasonably imagined. " "But if you think about its operating principles, you will find that molecules and atoms will decay, at least in the foreseeable future. Even if it takes another thousand years, humans will not be able to interfere. Therefore, the information stored in it will be unreadable due to decay at most two thousand years. "This still relaxes many standards to obtain the ideal model. Based on the reasonable expectations of those scientists in reality, even if this thing can be built in a few decades or hundreds of years, it will be a defective product that will break down within five hundred years. " "Two thousand years?" Gu Cheng was stunned. , couldn't help but turn up the tune. "I once watched a very old documentary called "After Humanity Disappeared". The high-quality USB flash drives mentioned in it can store information for more than two thousand years, right?" "Bingo," Qingyi Zhuse listened. The stone door made a creaking sound, and he pushed it forward with difficulty, saying: "Yes, if the quality of memory such as USB flash drives and hard drives is good, it can preserve information for about five thousand years; especially the optical disks we had at that time, if Made of special metal materials, it can reliably preserve information for 100,000 years. " "A very interesting phenomenon is that the more advanced our technology is, the more advanced the means of preserving information are, and the special optical discs can be stored for 100,000 years. Ten thousand years is long enough, right? But this is just a small moment in the long history.??section. " "Moreover, these products since the third technological revolution are actually not as good as printed matter. Good-quality printed matter, using special synthetic paper and ink, can still be read two hundred thousand years later. But that's the end of it, that is to say, the means we usually use to store information can only reliably preserve information for a maximum of 200,000 years. " "Although this civilization cannot foresee future generations, it can think from the most pessimistic perspective. If you want to leave traces and proof for this civilization to have existed in this world, then the preservation period should be at least one hundred thousand years. We have discovered it now after 300,000 years, which is considered a lucky enough situation. " Gu Cheng couldn't help but stop for a moment and asked in surprise: "So, they used the most primitive stone in order to maximize the storage time of information? " "Haha, yes, it's hard to imagine. Sometimes tracing back to the source may not be our subjective initiative, but the result of objective reality. " "Think about those murals left by prehistoric humans. Their existence spans are measured in ten thousand years. " "Although most prehistoric murals are from 40,000 to 50,000 years ago, whether in Europe or Asia, murals that are over 100,000 years old do not exist. " "And if a few gouge marks and the marks of several tools can be considered a type of information, we can even trace it back to the middle of the Pliocene Epoch a full 2.5 million years ago! " "This is just the result of being in an open-air environment, so far as it is unintentional. What if we use special stone, give it special environmental protection, and use special techniques to carve it? What will happen? How long can it be stored? I'm afraid all the means since civilization will be ashamed in front of it. " "You see, three hundred thousand years have passed, and these strange symbols and patterns are only covered by dust and appear a little blurry. If we want to uncover it and take a look, it must be extremely clear. " "I have to say that the people who left behind this glorious civilization are indeed extremely smart." After listening to Qingyi Zhuse's explanation, Gu Cheng, who understood, also sighed in shock. "However, this design is probably not for coping with the situation. An unexpected disaster. " "During the glorious period, there was still such a plan of destruction. How harsh was the environment 300,000 years ago. " After sighing a few words casually, Gu Cheng couldn't help but reach out to brush off the dust on the door, wanting to verify whether the symbols and patterns were clear. As he wiped, the outlines of the head, body, and limbs gradually appeared. Is this a human form? This What's more, Gu Cheng used his spiritual power to shake lightly, and the dust flew down, and a clear and realistic female figure appeared like a meticulous painting. "Is this what humans always use to call this leftover civilization?" Lost his mind, and with a sudden force, the stone door slowly opened with a sore voice, and what came into view was a truly shocking sight (To be continued, please search Piao Tian Literature, the novel will be better and updated faster!