"The ground?" a glimmer of hope reappeared in Du Xingyu''s desperate heart. He shouted, "is it the ground?"

    "No," said the voice, "I''m a message. You can also think of me as a set intelligent program. My name is'' technology simulator ''."

    "Technology simulator?" Du Xingyu said strangely, "how did you appear? Who set it?"

    The voice said, "I come from a human civilization in a certain time and space in the future. It is a human civilization with highly developed science and technology. We are a real interstellar civilization and have even touched the field beyond the dimension."

    "However, human civilization has not been able to continue. We have encountered the attack of civilization from a higher dimension. The whole civilization has been erased!"

    "In the high-dimensional universe, we project all scientific and technological information to the beginning of the birth of human civilization, that is, now, we have formed a science and technology simulator."

    "We tried to use this method to speed up the process of human civilization, open the outbreak of science and technology in advance and obtain the hope of survival. But our enemy used the annihilation bomb of time and space."

    "This is a weapon of cosmic law. It is printed and shot at every parallel space-time of human civilization. When human science and technology develops to a certain extent, it will encounter all kinds of disasters. The asteroid you see hitting the earth is one of the results of space-time annihilation bombs."

    Du Xingyu looks at the earth. At this time, the earth has become a fireball! This time the asteroid hit the earth, more terrible than the extinction of dinosaurs! Human civilization is destroyed!

    "What''s the use of saying this now? Mankind is extinct!" Du Xingyu sat on the ground. He was heartbroken when he thought that his relatives and friends had died in the disaster.

    "No, there is still a chance," said the technology simulator. "What you see now is just a possible reality I simulated for you. In fact, you are dreaming now. Do you remember what happened before you landed on the moon?"

    "I''m dreaming?" Du Xingyu''s body shook. He tried to recall what had happened before, but he didn''t seem to remember at all.

    "Yes," continued the science and technology simulator, "but reality will be more terrible than dreams, and there are more terrible disasters than asteroid impact on the earth. There have been countless parallel human civilizations destroyed, and your earth space-time may be the next one!"

    "Then we can deal with these crises by opening the outbreak of science and technology in advance?" Du Xingyu asked.

    "Not necessarily, it just increases the possibility," said the technology simulator, "but in general, the higher the level of technology development, the more ways to deal with crises."

    "Are you willing to fight for it?"

    "Of course." Du Xingyu said without hesitation, "my life has just begun, but it can''t end like this."

    "Very good," said the science and technology simulator, "as long as you make good use of my functions, you can obtain various types of science and technology and lead the progress of human civilization."

    "Not only in your own time and space, you can also experiment with different scientific and technological directions in parallel time and space and explore the future of human civilization."

    "Different scientific and technological directions?" Du Xingyu asked.

    "Gene, mecha, body reconstruction, mechanical era, data immortality... Each scientific and technological direction may lead to a completely different scientific and technological civilization. Take all mankind and countless parallel time and space as your scientific and technological test ground, and finally find the direction of the continuation of human civilization! This is the significance of the existence of scientific and technological simulator!"

    "All mankind, countless time and space!" Du Xingyu was shocked. It''s exciting to think about such an unprecedented experiment!

    "How can I use you?" Du Xingyu asked.

    Technology simulator: "you need to create scientific research projects in the simulator and use your talents or team information to speed up the progress of scientific research projects."

    "The most important thing is to get energy points. Energy point technology is directly used to upgrade a technology or accelerate the progress of technology research and development."

    "The energy point comes from human emotional energy. This is an energy in the Dark Universe. Through it, I can carry out scientific and technological simulation and deduction. Once someone is excited, surprised and happy about your scientific and technological technology and achievements, I can absorb these energy."

    "I probably understand." Du Xingyu nodded slightly.

    "Well, someone is calling you. It''s time to wake up." the technology simulator said, and Du Xingyu''s consciousness gradually blurred.

    When he woke up again, he heard the voice of his college roommate: "Du Xingyu! If you don''t get up, it will be sooner or later. Do you dare to open Professor Liu''s class?"

    "I''ll go, Lao Liu''s class? Credit will be deducted for being late and absent from class!" hearing the name, Du Xingyu conditionally sat up from bed and hurriedly dressed and washed.

    After washing his face, Du Xingyu looked at himself in the mirror.

    This is a 20-year-old boy, clean inch head, high brow, white skin and handsome.

    "I''m Du Xingyu, a senior at the school of Astronautics, Capital University of Aeronautics and Astronautics." he muttered. The scene in his dream is still playing back in his mind.

    "What are you muttering about? Let''s go!" urged roommate Wang Wei.

    "Coming!" Du Xingyu hurriedly followed.

    As he walked, he shouted in his mind.

    Technology simulator: "I''m here."

    "It''s true!" Du Xingyu sighed with emotion. It turned out that the dream he had just had was not his imagination! Everything is real.

    Since science and technology simulators exist, will the end of mankind come?

    Du Xingyu still shudders at the thought of the doomsday scene when the asteroid hit the earth and the earth turned into a fireball!

    "No, we must stop all this!" he told himself in his heart. Next, we should quickly study the use of science and technology simulator and let human science and technology explode as soon as possible!

    Du Xingyu thought that he had come to the classroom.

    This is a large classroom with hundreds of people. It is full of students. The Capital University of Aeronautics and Astronautics is the most famous university in China. The students here will also become the elite in the aerospace industry.

    And this class is called aircraft power engineering. The teacher in charge of teaching is Professor Liu Yuan of University of Aeronautics and Astronautics.

    At the same time, he is also an academician of the National Academy of engineering and an aerospace engineer of the National Space Administration! It can be described as the top coffee in the aerospace industry!

    "I''ve almost finished what I should teach," said Liu Yuan, an old professor with gray hair and nearly 70 years old on the podium.

    "You students are about to leave the campus and enter scientific research institutions or jobs. In order to test what you have learned, I ask you to make an aircraft related device for your graduation project."

    "Aircraft model, UAV, aircraft engine model and so on can be completed individually or in a team. This is related to whether you can graduate smoothly. You can use snacks and finish class."

    Liu Yuan finished and left the classroom directly. In the classroom, the students talked one after another.

    "This graduation project is so difficult. I design UAVs independently... I feel a little suspended!"

    "Yes, and it''s definitely unqualified. I heard from the senior students that those simple aircraft models and UAVs can''t pass the test at all, and they have to be redone!"

    "Professor Liu is too strict!"

    "Brain pain!"

    "I knew it was not so simple graduation!" Du Xingyu, roommate Wang Wei, make complaints about it.

    "Yes, I have no clue at all." Zhao Qingquan, another roommate, covered his head.

    "Why don''t we do it together? It''s easier," suggested Lv Liang, the last person in the four person dormitory.

    "OK!" Wang Wei immediately agreed. "Let''s design one together!"

    "Agree!" Zhao Qingquan immediately agreed. He looked at Du Xingyu and asked, "Du Xingyu, what do you say?"

    "I want to think about it." Du Xingyu mused.

    During the class just now, he has studied the technology simulator and almost understood the use method.

    What he has to do now is to find a direction for scientific research, and then promote science and technology in this direction. This graduation project may be an opportunity.

    There are many optional scientific and technological directions, such as mechanical engineering, mecha, artificial intelligence, biotechnology, etc. as a student of the University of aerospace and aeronautics, Du Xingyu prefers aerospace and aeronautical technology. After all, he knows more about this aspect.

    "In my dream, the earth will be hit by an asteroid in the near future. With the current level of science and technology of the earth, it is impossible to deal with it. Although this future may not come true, I want to find a way to deal with it..."

    Du Xingyu thought: "maybe accelerating the development of aerospace technology and making mankind go out of the earth faster is an opportunity to save himself?"

    Technology simulator: "you can try this direction. Do you want to start the first world of technology simulation?"

    "Open it," said Du Xingyu in his mind. "The first scientific and technological simulation of the world is named the interstellar age."

    "This time, I want to find a way to make mankind go out of the earth and into the interstellar faster!"

    Science and technology simulator: "the science and technology simulation of interstellar age has been established, and the main development technology is aerospace technology."

    Under the science and technology simulation of star age, there are many branches of science.

    Such as material science, control engineering, information and communication engineering, optical engineering and so on.

    "The new technology simulation project," Du Xingyu continued, "the first technology is the recyclable launch vehicle."

    Yes, the first technology Du Xingyu wants to develop is recyclable launch vehicle technology! In the modern world, the biggest problem faced by aerospace is the cost problem.

    Cost constraints limit the further development of aerospace technology. If recyclable launch vehicles can be developed, the development of aerospace technology will develop rapidly.

    Science and technology simulator: "the scientific research project recoverable launch vehicle has been established. The current research progress is 0%. The current energy point is 0."

    "Tip: continue to study and use energy points to speed up the research progress."