Time travel has always been a dream pursued by scientists, and it is also something that people yearn for.

There are a lot of people who want to go back in time, see their deceased relatives and friends, and relive the good old days. There are also some people who want to fly into the future and explore more unknown novelties.

In 2035, the scientific research team led by Professor Rosen of the Department of Physics at Xingchen University in City A of Z, after years of hard work and countless successful primate space-time travel experiments, will boldly carry out the first manned space-time travel in human history.

In order to record this event, Stars University held a press conference in the auditorium to report on this manned time and space trip.

A thin man in a formal suit, with gray hair and braids, stood at the podium, and he was Professor Rosen.

Professor Rosen looked under the lookout with resolute eyes, a kind smile on his face, and his whole person was full of confidence and majesty.

He began to explain the basic principles of time travel, and the way to achieve it, and answered questions from reporters.

He said: "Everything in the universe has small holes or cracks, and so does time. After years of hard work, we have successfully captured and expanded a wormhole suitable for human shuttle.

Travelers only need to enter the shuttle, set the destination, and press the switch of the time card to open the door of the wormhole, and then start the shuttle to go to the destination and reach another parallel space. ”

A reporter asked, "Can time travel reach any time and space?" ”

Professor Rosen replied: "Theoretically, so. But at present, our scientific research results are up and down for 20 years at most. That is, at most, to go back to 2015, or to 2055. ”

The reporter continued to ask: "Where is the destination of this time and space travel?" What is the exact date to get over there? ”

Professor Rosen replied: "The destination is city A in country Z in 2015, but the exact date cannot be determined.

Theoretically, we are here, today is April 13, 2035, and we can reach April 13, 2015 to the maximum extent, but in practice, there will be errors.

This error is generally less than a year, which means that the date of this time travel may be after April 13, 2015, or even May, June, July, etc. ”

"Professor Rosen, you mean to say that it is impossible to arrive before April 13th, only after this date?"

"Yes, the current level of science is not yet available."

"I also have a question, why did you choose to travel back in time instead of the future for the first time traveling?"

"Because going back to the past is more controllable than going to the future," Professor Rosen said. What has happened in the past, we know, naturally have more certainty and chances of winning, and it is safer for the testers.

In the future, there are too many uncertain factors, such as wars, natural disasters, etc., and the risks are much greater, so we can only wait for science and technology to become more mature in the future. ”

A reporter asked, "How safe is time travel?" I heard that the test worker this time is your daughter, aren't you worried about her safety and health? ”

Professor Rosen raised his head slightly, his gaze fell on the window lattice in the distance, and hurriedly pulled his gaze back: "We have conducted countless successful primate round-trip experiments, and the safety is very high.

Although Luo Yixin is my daughter, she is also a scientific researcher who is fighting at the forefront and has high awareness and courage.

Originally, this time, I wanted to go by myself, but she said that I was old and she was a young person, so she should go to the front and let me stay in the rear to assist, and said that to do scientific research, you need to have dedication. I am proud to have such a daughter! ”

Then, another reporter asked: "Are there any special matters that need to be paid attention to in the process of time travel?" ”

"Absolutely." Professor Rosen said, "The rules that must be observed in time travel are that the traveler can only live in time and space as a spectator, and must not break the laws of nature.

For example, people who go back in time must not divulge what did not happen or change history; Those who go to the future are not allowed to make forward-looking investments and behaviors after returning to the original time and space. ”

The reporter hurriedly asked: "If it is violated, will there be any adverse consequences?" ”

"If you violate the rules of time travel and disturb the laws of nature, the energy in the universe will intersect and be confused, and the energy of the time traveler itself will also undergo great changes, and it must be bad changes, which is the punishment of nature. As for what, it is not clear as it has not been tested. Professor Rosen replied.

A reporter asked: "Professor Rosen, is there any limit to the length of stay on this trip?" Do the testers have any tasks? ”

"Yes, after all, this manned time travel is the first time in human history, and it will definitely be cautious, so we will only set the length of our stay to one day. Over there, the task of the experimenters is to eat, drink, and sleep normally, and fulfill the basic needs of human life. When the time is up, the time card will vibrate, like an alarm clock, urging the tester to return. ”

After a pause, he added: "After returning from the mission, we will conduct a series of physical examinations on the test personnel to see if there is any negative impact of time travel on the human body, and then look for prevention and solutions." ”

"Is time travel harmful to human health?" The reporter asked.

"Over the years, we have been able to minimize the negative impact on primates by continuously improving the shuttles." Professor Rosen frowned slightly, "And humans, since this is the first experiment, it is difficult to predict whether there will be unknown dangers......"

At this point, he lost his mind instantly, his eyes were dark, his heart was full of worry, and he could no longer answer the questions of the reporters who followed.

The improvisation host hurriedly came to the stage, replaced Professor Rosen, and said: "Let's take a look at how the researchers are preparing at this moment, in the research institute affiliated to our Xingchen University, the Xingchen Research Laboratory!" ”

As soon as the words ended, the lecture stage in the auditorium immediately switched to a holographic projection, which was a set of live reports in the laboratory.

In the silvery-white closed laboratory, several scientific researchers are busy in their own jobs.

At this time, the robot, who didn't know where to hide, said in a regular heavy metal voice: "Luo Yixin, please enter the space-time simulation area!" ”

I saw a beautiful woman wearing a light gray and slightly metallic tight trousers, calmly walking to the center of the space-time simulation area, her long straight black hair swaying gently, and the whole person looked capable and confident.