"Is it possible to arrange some conspicuous landmark on the next planet to point clues to the source of magic back to the place of exile, and it will not disappear naturally for thousands of years."
"Not next door, but farther away."
"Isn't it the main world next door..."
"You saw it and still asked."
"I can't be sure. The color temperature of the sun is different over there, and I'm not professional."
Solaris made a shocking statement: "You want a stable geological environment, preferably a world without an atmosphere, where humans will notice it. This planetary system doesn't even have what you want."
This set of preconditions is indeed important.
Geological changes, which take hundreds of years as a span, can easily destroy the remains left by humans. If it is a glacier-type planet, the process will be faster. The atmosphere is mainly related to wind erosion, which is not pleasant, but if there is a wind erosion environment, there will be movable sand dunes, and the ruins may be covered.
For an environment without an atmosphere to be noticed by future humans, there are only two conditions. One is that the resources above are scarce, and the other is that it plays an irreplaceable relay station role in inter-planetary flights.
Many resources are scarce in the breathable atmosphere, but are common resources in the universe, such as helium 3. Its formation mainly relies on the transformation of matter by cosmic rays, while the geomagnetism and atmosphere shield cosmic rays.
Even helium-3, once it goes into space, is a fusion fuel that can be found everywhere and can be mined from any planet without an atmosphere.
In short, a planet without an atmosphere and relying on resources has become an object that "must be paid attention to", and the conditions are too harsh.
"A location where a relay station can be established? Is there one?"
"Yes, when you are ready, I will open the door for you. Be careful, there is no atmosphere."
"...It won't suck the atmosphere out of here."
"No, but you have to save some magic power for me."
"No problem. Can you reveal the gravity and whatnot?"
"I've never been there. It should be very small and people might not be able to fall back to the ground."
"Is the magic effect there the same as here?"
"Some of your magic may not work."
"It will take a lot of time to prepare."
"Come on." Solaris' Loli gave encouragement and disappeared.
Although there are still many questions that I haven’t had time to ask, the amount of information I got is not small.
Looking back on the conversation just now, it is easy to realize that Solaris has seen higher-level civilizations!
The concept of relay has no meaning to Solaris itself. His consciousness relies on the linkage between host bodies. Although the host bodies on different planets are all Solaris, they are not the only one.
... In human terms, the excessive distance between host bodies will cause Solaris to split into a consciousness that cannot synchronize with the main body.
Therefore, he has no reason to explore and understand the concept of relay, which can only come from other civilizations.
Is it the civilization represented by the super-ancient lander dug out of the mine?
Isotope dating has not yet been developed, but based on the depth of the strata and the degree of mineralization, it is too old to be from 800,000 years ago. Before that, Solaris had not paid attention to this world.
But that's not necessarily the case. Maybe Solaris followed the footsteps of a certain civilization back then and tracked it down here.
After all, when Solaris mobilizes its entire body, it is equivalent to an omnidirectional telescope the size of a planet. For the scale of the universe, this size is still barely meaningful.
No relics from that era have been found so far, and it is easy to explain that the place of exile is constantly turning into a floating island. What relics can withstand repeated climate changes? Those that can withstand it are buried deep underground, and they have to be lucky enough not to be exposed by the geological changes of the past. Otherwise, if the temperature and humidity change, the ruins will turn into ore.
For Solaris, who had existed for who knows how many years and how long it would continue to exist, it was meaningless to make random guesses about his experience, and it was not helpful at this moment. Wang Qi still focused on business.
There are no suitable planets in this planetary system, but outside, there are "celestial objects that must be discovered and must be noticed", which itself contains enough information.
Breaking through the scope of the planetary system, relay can be extended to navigation relay and communication relay, of which the latter is more important.
Now we know that the main world is in the same planetary system as the exile, and the demon world is also likely to be the same.
Including the penal colony, the three parties are unable to conduct "magic teleportation" across worlds, and can only conduct long-distance teleportation within a single world.
It is said that several lords of the Godfall Dynasty can rely on "Ispas eggs" to transfer single objects to the main world. However, due to the lack of a more specific process, it is difficult to judge whether it is a means of inter-planetary movement, or it may simply be It is because all three worlds are affected by the will of the local world that similar movements can be achieved.
Assuming that this road is blocked and the classical inter-planetary method is returned to, navigation relay will lack practical help in various situations.
Situation 1: Human beings are unable to make gravitational jumps, so interstellar travel means trying to meet the upper limit of the spacecraft speed. Based on an average of four light-years between two galaxies, 5% of the speed of light takes 80 years, 1% of the speed of light takes 400 years, and even 10% of the speed of light will take 40 years.
Although Wang Qi has never seen similar civilizations, it is impossible to exceed 10% of the speed of light for a long time. From the perspective of basic physics, it is impossible because at this speed, almost no collisions between interstellar dust and spacecraft will become frequent collisions. , if there is a slightly larger one in the middle that is not stopped by technical means, it will be a nuclear explosion.
This means that direct navigation will inevitably face the problem of extremely long voyages. The solution is either to sleep or to planetize the spacecraft and install at least one city in it.
Naturally, there is no need to consider replenishing supplies midway during hibernation. If there is acceleration and deceleration in the northwest time, it is better to arrive at the station a few years earlier.
Considering that the planetary spaceship operates for a long time in the ecosystem, it may produce cycle defects, and it is indeed necessary to replenish it. However, this situation must be considered before building the spacecraft. After eliminating the complicated process, the replenishment materials must be all over the universe. important resource - ice. This does not require site resupply, because far away from the star, there are not too many icy objects. Just have an engineering spacecraft to go out and pull it back. It doesn’t matter even if it takes a few months. People in a city must have something to do in the spacecraft. Do.
In case two, the gravity jump technology is accidentally acquired before leaving the planetary system, so there is no need to consider navigation relay.
In contrast, communication relay is more important.
Before there was a real-time transmission method across galaxies, information that could be calculated in years could not be considered old news, but could only be considered rumors. Considering the transmission characteristics of electromagnetic waves and the impact of cosmic rays on them, without relay communication stations, it would be difficult for videos to travel across galaxies. It could be in the form of pictures or even audio, which is even more outrageous.
Even with inter-galactic communication, everyone still needs "time adjustment" and "communication data error correction" to ensure that there are no problems with some automated things. A relatively large number of communication stations can also help track the position of each planet in real time.
Therefore, no matter which technical branch it develops into, information relay stations will be difficult to eliminate for a long time.
"A celestial body that must be discovered and must be noticed" must be a celestial body suitable for communication relay. Its best position should be a relatively fixed position between two stars, similar to the Lagrang between stars. Day point.
Only the particularity of its location can make this non-artificial celestial body special enough and attract the attention of future people.
But at such a location, the star's light energy is almost negligible. Considering that Solaris said that celestial bodies are so small that people may not be able to fall back to the ground, it is basically ruled out that geological activities and celestial body deformation (friction) produce temperatures. It is normal for temperatures below minus 200 degrees. .
Putting something in that location is a challenging task.
