Over the years, Li Qingsong has been using a large-aperture telescope array to observe the starry sky in the direction of the Gliese 625 galaxy. But since the main fleet of the Bluetook civilization sailed out of that nebula area, Li Qingsong has not seen any trace of the Bluetook civilization for a long time. There was no way. The starry sky was too vast. Even if it was a fleet of this size, if it did not make any big noise and just sailed quietly, I would not be able to see it. But now, Li Qingsong saw them again. From that direction, Li Qingsong saw a shining star. "This is the start of the deceleration phase..." He knew that in the vast starry sky, many spaceships belonging to the Bluetook civilization had adjusted their postures together, aimed their jets towards the solar system, and launched fierce jets together. Only in this way can this huge fleet slowly slow down and eventually stay in the solar system instead of flying directly over. The countless engines of these countless spaceships and the countless nozzles of countless engines sprayed together, and their light gathered together to form a star. A bright star that is invisible to the naked eye but can be seen clearly through a telescope.
The maximum speed of the Bluetuk fleet is 3% of the speed of light. Based on the jet power, Li Qingsong calculated that the Bluetuk fleet's acceleration at this moment is meters per square second. According to this acceleration, it takes about years to slow down from 9,000 kilometers per second to about 100 kilometers per second, and the total distance traveled is about trillion kilometers. The gravitational boundary of the solar system is the Oort Cloud, the outermost part of which is about light-years away from the sun. At this moment, the distance between the Bluetook civilization and the sun is trillion kilometers, but it is only light years away. Judging from the gravitational boundary, the Bluetook civilization entered the solar system a long time ago. " years, trillion kilometers..." Li Qingsong silently pondered over these two numbers: “With my current deep space communication technology, I should be able to send the signal this far. In that case... let's talk about it first." Looking at the solar system defense line that had taken decades to build, and looking at the factories, warships, bases, interstellar mine clusters, unmanned fleets, artillery batteries, etc. that were almost everywhere in the solar system, Li Qingsong made a decision. The basis of negotiation is strength. Negotiations can only proceed when the strength is roughly equal - at least when there is the possibility of threatening the other party. Otherwise the negotiations are meaningless. In his heart, Li Qingsong did not want to fight this war. There was no hatred between the two civilizations, so why would they fight to the death? It is better for us to develop ourselves honestly. It is for this reason that we have struggled for hundreds of years, developed with all our heart, and devoted our all to building the defense of the solar system. Only with sufficient strength, Li Qingsong is qualified to say "I don't want to fight". Without strength, whether to fight or not is not something Li Qingsong can decide. There should be a basis for negotiation between myself and the Bluetook civilization. The solar system is certainly your migration target, but why not change your target? You have already spent hundreds of years on the journey, so what if you can fly for a few more decades? Through multiple giant antennas installed outside Neptune, a message was sent in the Bluetook language to the vast deep space, to the Bluetook civilization more than one trillion kilometers away.
"Respected Bluetuk civilization, hello. I am the head of human civilization. On behalf of the hundreds of billions of people in human civilization, I would like to pay tribute to the guests who have come from afar. Since the birth of the solar system, our human civilization has spent tens of thousands of years in this galaxy. Later, due to some unexpected events, our civilization had to start interstellar migration and travel to other galaxies to spend some time. However, we did not expect that because we were away from your civilization for a period of time, your civilization mistakenly believed that the solar system was an unowned land and actually set the solar system as a migration target, causing a huge misunderstanding. This is our fault. Now that the unexpected incident has been resolved, our human civilization has returned to this beautiful galaxy that gave birth to us and raised us, and will survive and reproduce here for a long time. Although we have a peace-loving heart and very much hope to have friendly exchanges with your civilization, the carrying capacity of a galaxy is ultimately limited, and we are afraid that we cannot accommodate an entire civilization to develop in our home. Based on this, we make suggestions to your civilization, hoping that you can change your migration target, do not slow down, continue sailing, and choose other galaxies as migration destinations. In order to make up for the misunderstanding caused by our temporary absence and the losses you have suffered as a result, we can bear all your material needs free of charge. Whether it is fuel or minerals, water, methane, carbon dioxide, gold, silver, copper, iron, etc., all materials, as long as you need them, we can always use long-distance delivery to deliver these materials to your fleet route for you to sail to the next galaxy. We will also return your personnel who were forced to stay with us due to some misunderstandings, such as Momorans and others. In recent years, we have carried out extremely large-scale construction in the solar system, constructed a complete solar system defense line, and possessed countless advanced interstellar defense facilities. I believe you can also see it through observation facilities. But please do not misunderstand, all our constructions are defensive measures and will not pose any threat to you. We are eagerly looking forward to your contact with us. If necessary, you can also send an inspection fleet to negotiate with us on the spot, and we will certainly be ready to welcome you. May peace last forever! From human civilization. " In order to prevent misunderstandings due to cultural differences, Li Qingsong tried to be as frank as possible while ensuring friendship during this period of time. The meaning is also very clear. As long as you can change your destination and not come to the solar system, then everything will be fine. I can also give you any resources you need. But if you insist on coming, I'm sorry, but the solar system defense line that I worked so hard to build is not a pushover. At worst, we can just have a fight. Although I don't want to fight with you, I'm not afraid if we really have to fight. It’s up to you to choose. This message has been sent out at this moment. It will reach the fleet of the Bluetuk civilization in about a month and a half. If all goes well, the response from the Bluetook civilization will arrive in less than three months. Time passed quietly. Li Qingsong strengthened the defense of the solar system again while silently waiting for the response from the Bluetook civilization.