The Milky Way is called a galaxy group, and a galaxy cluster is composed of several groups of galaxies like the Milky Way.
The Milky Way is currently located in a star cluster called the Local Group of galaxies. In addition to the Milky Way, there are 49 members, and they are all very huge.
Super galaxy clusters are even larger. They are composed of about dozens to thousands of star clusters. As for why humans can divide them, it is because of gravity.
Every planet revolves around a star with greater mass. Planets such as the Earth revolve around the sun, and the star of the sun revolves around the Milky Way. The Milky Way revolves around the local galaxy cluster, and the local galaxy cluster revolves around the local supercluster.
There must be bigger ones, but human observation is limited and we can no longer see clearly what trajectory these supergalaxy clusters are moving slowly along.
"Yes, I am what you call ET. The purpose of my coming here is not to destroy or invade. My duty is to protect low-level civilizations and prevent them from being destroyed by high-level civilizations, so I formed the Super Galaxy Cluster Alliance."
"More than 40,000 years ago, I received a report from the Elmos Super Galaxy Cluster and came to the Milky Way. It was said that the Elmos people were destroying biological civilization without authorization, so I came to investigate. However, I suffered an unexpected attack on the way. Now All I have left is this Mansha Crystal, which is unique to our galaxy cluster, and my consciousness resides here." Delman explained slowly.
"Wait a minute, how come you can speak our language and use the literature of our civilization?" Zhang Xiaofeng took a few steps back, but he squinted his eyes, as if no matter how much he stepped back, he was still confused with the alien in front of him who called himself Delman. The distances are all equal.
"Originally, I analyzed the audio and other characteristics of your speech and spoke the language of this country. You call it English. Then you came into contact with the Mansha Crystal. I obtained the stream of consciousness of your brain and directly obtained the memory of your brain. I now own you. All wisdom.”
Zhang Xiaofeng nodded, I see, but he was a little regretful. He was already in his thirties, and the knowledge he had learned for so many years was taken away by an alien in a few hours. This was the gap. He said again: " Listening to what you say, you have lived for tens of thousands of years..."
Delman also knew the question Zhang Xiaofeng wanted to ask. Eternal life is the inner wish of all humans on this planet, but for them, the Mansha Stars, immortality is no longer the goal they pursue. The two are no longer on the same level.
Delman picked up the topic and did not talk about the secret of immortality. After all, Zhang Xiaofeng and his group's civilization level was too low. It was unintentional to say so: "According to your memory, your civilization is only level 1.25 according to the level of civilization in the universe you have classified." …But in our eyes, you are still unable to meet the alliance’s requirements, so you are not protected by us.”
"But according to your excavation of my ruins, I was in the period of the Muria civilization. They were already able to conduct interstellar travel and escape from this planetary system, but their civilization was destroyed, so I came to investigate. of this matter."
"What?! The Muria civilization can also travel among the stars? How is this possible! But why can't we find any of their technological products, not even a screw." Zhang Xiaofeng was still a little angry at first. After all, in this peaceful era, everyone I hope that I can live a long life and live forever. But hearing what Delman said, he was a little shocked.
Civilization disappears very quickly, leaving no trace behind.
Suppose that one day all human beings suddenly disappear. In about 20 years, fields and streets will be occupied by weeds and vegetation.
Within a hundred years, all wooden things will begin to rot and be eroded by wind if they are not maintained by humans. A few hundred years later, wind, rain and the growth of various plants may cause those high-rise buildings to gradually collapse.
In about a thousand years, natural disasters such as earthquakes, plate movements, and tsunamis will completely hide bridges and other solid cement underground, and cars will become rusty and integrated with nature, completely decomposing.
The most advanced way for humans to store information is nothing more than computers or USB flash drives. If no one cares about it, an ordinary USB flash drive will not survive 10 years, and those computers will also last for decades to hundreds of years. disappear completely within.
It may take less than a thousand years, and nothing that can prove modern civilization can be found. Plastic can be degraded for hundreds of years if placed underground, but it may be broken into a lot of powder if left on the ground and exposed to sunlight for a few years.
So how to prove human civilization? Femtosecond lasers can engrave information into nanometer glass crystals. The information density recorded using 5D is very high, and can theoretically be preserved for 13.8 billion years in a harsh environment of 190 degrees.
But does this work? If human civilization suddenly encounters an accident, even if it records this information, it will still sink into the ground with its secrets. So is there any way to allow future civilizations to clearly see the last destroyed civilization at a glance?
Only like ancient civilizations, they can carve words on stones and build magnificent wonders, and these stones must be very hard so that they can withstand tens of thousands or even hundreds of millions of years of wind erosion.
"More than that, the previous Mohos civilization, Gendaya civilization, and Mesopotamia civilization in your documents have all been able to achieve the ability of interstellar voyages, but their civilizations have also been destroyed. I received the report I came here to find the murderer who destroyed these."
"The ancient civilizations you have learned about are not capable of building pyramids. They just occupied the territory of the previous civilization. Otherwise, why would they not have records and methods of building pyramids? Because they would not be able to build them at all."
"Only the tallest pyramids can accumulate energy and emit signal pulses. The informant is the giant civilization that built the pyramids. When their civilization emitted information particles, there was no news. Now it seems that their civilization should also be Disappeared."
"That's not right, then why is our civilization still so prosperous? You're not lying to me, are you?" Zhang Xiaofeng was a little bolder, because from the beginning to the end, the alien did not show any malice, but it made him feel a little uneasy. .
"Because your civilization is not qualified to be destroyed yet. With the technology of your current civilization, you are still unable to fly out of the mother star. This is considered a low-IQ species and cannot be called a civilization."
Zhang Xiaofeng suddenly thought that he could not reveal this matter, otherwise he would be in constant trouble, so he immediately got up and closed the laboratory. He interrupted Delman and told him to talk later. The business was to destroy today's surveillance video first.
At this time, Delman said: "Don't be so troublesome. The brain field of your race is simply a blank sheet of paper. You have come into contact with the Mansha crystal, and I have mastered your brain wave frequency. According to your unique biological waves, Mansha The information conveyed to you by the sand crystal can only be seen and heard by you, others will only think that you are talking to yourself in the air."
"Brain waves transmit information. Isn't this telepathy?" After hearing so much, Zhang Xiaofeng began to believe the words of the strange creature in front of him. He sat down slowly.
"No, the telepathy you are talking about is only one-sided. Our communication is multi-faceted. In our civilization, there is basically no need to use communicators. Signal towers are only built at long distances."
Zhang Xiaofeng nodded, knowing so many things that ordinary people could not know. He felt that his world view had become broader, and his goals in life seemed to have changed. Since the other party could read minds, he was too lazy to hide these little things about himself. Thoughts.
"Do you want a chance to live forever?" Delman spoke first, and Zhang Xiaofeng nodded.
"Actually, immortality does not mean invincibility. It just allows your telomeres to replicate infinitely and break your so-called Hayflick limit. But you will also die due to accidents, wars, diseases and other uncertain factors."
Delman began to read Zhang Xiaofeng's heart again, and it spoke again: "I can agree to your request. Immortality is no longer necessary for my race. After genetic modification, our descendants will have unlimited life span as soon as they are born. Our civilization We have set our sights on a higher level of civilization.”
"Okay, what do I need to do to get what I want..." Zhang Xiaofeng felt happy when he heard that this matter was interesting.
Delman felt helpless and replied: "Well, I need you to send the Mansha crystal in your hand to our planet. As long as you see my people, you can satisfy your greed."
So Zhang Xiaofeng put down the purple crystal in his hand. A few days later, while others were not paying attention, he made a copy of an identical crystal, except that its material was not the same as the original one.
According to Delman, the material of Mansha crystal is not in the periodic table of elements. It is still a kind of super strong metal crystal.
To be on the safe side, Delman will call all the people who know the crystals on the slate individually, and then modify the memories in their brains.
Delman is not omnipotent. It cannot modify the memory of other people's brains at will. At most, it can only read it. It requires a specific electromagnetic expander to modify other people's memories, and it can modify memories that many people have little impression of.
If you want to deeply modify or delete human brain memory, you will need more technological means. Obviously it is sealed in this crystal and cannot perform such tedious steps.
Delman only modified the material used by others to detect crystals into quartz, and the other components remained unchanged.
"This phagocyte is actually my own cell. The nucleus inside it contains my genetic key. Only people of my own clan can decipher it. It contains important information such as my origin and identity. I must bring this with me."
Zhang Xiaofeng was a little embarrassed: "But I can't take it with me. After my supervisor publishes his paper, this place will be evacuated soon and moved to a higher-standard laboratory. I have no choice."
"It's okay, inject it into your body, but be aware that the phagocytes will eat the biological genes of other species, causing them to develop lesions, and eventually replicate into the same phagocytes."
"This is one of the keys to the immortality of our civilization. The phagocytes in our body are just like your stem cells. As long as they keep eating the genes of organisms and convert them into new phagocytes, they will continue to become us. organs."
After Zhang Xiaofeng heard this, his eyes lit up and he nodded.
