Qiao Lu originally thought that he would meet someone he didn't know at all, after all, it had spanned two thousand five hundred years, and there should be few people he knew in the world now, as if he had just returned to the time when he had just traveled to the wandering earth.

However, the world is so wonderful, and the person waiting for Qiao Lu outside is a familiar figure.

The person who came was Ding Yi, and his appearance was not much different from before Qiao Lu went into hibernation, and he was even younger.

The reunion came so suddenly, in Qiao Lu's impression, it seemed that only a few days had passed, and even made him wonder if it had been so long.

Before Qiao Lu could speak, Ding Yi walked up excitedly and said:

"Jo Lu! See you again at last! I heard that someone invaded here during the rebellion, so I was worried that something would happen to you, but fortunately it turned out to be fine. ”

Although in Qiao Lu's feeling, the last time he saw Ding Yi was only a few hours ago, judging from Ding Yi's performance, this world has indeed passed many years.

Qiao Lu nodded and said, "2B helped me drive away the invaders, to be honest, I didn't know anything at the time, what happened a few years ago?" ”

"A few years ago?" Ding Yi glanced at him and said, "It's been nearly two hundred years ago!" Actually, I woke up two months before you, and I only recently learned that this kind of thing happened in history. ”

Sure enough, Ding Yi also came to this new era through hibernation technology, after all, he also participated in the research of related technologies at the beginning, and he can be said to be an expert in this regard.

"After all this time, how do you look younger than you used to?" Qiao Lu couldn't help but ask curiously.

"Young?" Ding Yi laughed heartily as if listening to a joke: "I'm over seventy years old!" Do you think I've been hibernating for more than two thousand years, just like you? ”

Although Ding Yi said that he was over seventy years old, he really couldn't see it at all from his appearance, and there was no sign of old age.

In Qiao Lu's doubts, Ding Yi explained:

"Today, the average life expectancy of human beings has long exceeded 200 years, and this is achieved on the basis of the law prohibiting research into technologies for indefinite life extension. There is no way, the immortality of the whole people is a terrible thing, even if it is technically possible, it is not ethically allowed. ”

It's like human cloning technology in the past, there are still certain taboos in science, both in the past and in the future.

"At present, prosthetic technology is mainly used, and replacing aging organs with artificial organs is enough to make people live for decades longer. With a little biomedical technology, 200 years per capita is just a small thing, and it has been reached hundreds of years ago. However, the coalition government found that this kind of research would be a bottomless pit, and if it continued to be hundreds of years old, the society would easily have problems, so it began to legislate to prohibit endless research on life extension. ”

Ding Yi then changed his words and said: "However, according to the law, the hibernation period is not considered as age, so there is no restriction on this aspect." I hibernate on and off all the way, only staying in each era for a year or two, and after learning that the technology at that time was not enough for my requirements, I continued to hibernate until the next era, and before I knew it, so much time had passed. ”

"It was a really interesting experience." Qiao Lu laughed.

Although such a long time has passed, Ding Yi is still the same scientific madman at the beginning, and he has only hibernated all the way to the present in pursuit of the truth of the universe.

Ding Yi complained: "Actually, everyone else already calls me Ding Lao." Obviously, I think I'm still quite young, even if there is a life limit, won't I still live for more than a hundred years, I really don't know where I am old. ”

"That's respecting your generation, I'm afraid your name is now in the history of science."

Qiao Lu didn't guess wrong, Ding Yi is already an old scientist of his grandfather's generation in the eyes of today's scientists, and his respect for him is from the heart.

Ding Yi joked: "You're embarrassed to laugh at me, when you go out to see what the history textbooks say about you, I guess you're more embarrassed than me." ”

Regarding this, Qiao Lu is still a little anxious. After all, during the Great Rebellion, he was also criticized as a dictator, killing countless tyrants. So how does today's society evaluate him, even if Moss says that he has been rehabilitated later, he is still a little worried.

"Anyway, let's go out first, society has changed a lot, I'll take you for a walk." Ding Yi proposed.

In any case, it is necessary to take this step after all.

Qiao Lu looked back at his dormant room, where Moss was controlling the machinery to clean it up, bringing everything back to its original state, which is probably why the entire area has remained unchanged for two and a half thousand years.

"Moss, I'm leaving, will you come along?" Qiao Lu said to the faithful artificial intelligence.

Moss replied, "No, I will always stay here, and if you find that this era does not meet your requirements, you can always come back and continue hibernation, and the doors will always be open for you." ”

"Thank you."

In this strange era, it is really extremely lucky that there is still a group of people who are silently supported behind their backs.

After saying goodbye to Moss, Qiao Lu took 2B and Ding Yi to the elevator to the surface, and it can be seen that this elevator has been renovated before, and it may be more than once.

It used to take more than 20 minutes to descend all the way from the surface to here, but now it takes less than a minute for the elevator to reach the surface.

When the elevator door slowly opened, Qiao Lu really didn't recognize that this was the wandering earth in the past, and sure enough, times had changed.

He was greeted by a field of golden wheat that stretched all the way to the end of the horizon, full ears of wheat drifting in the wind, and there was no trace of industry in sight.

Qiao Lu looked back at the place where he came out, and it was just a simple wooden house on this wheat field, hidden in a sea of gold, and he couldn't see it until he got closer.

But this is the only building within a kilometer radius, and there are no other high-rise buildings, which is very different from Qiao Lu's memory.

"How did this happen? What about the Central Academy of Sciences? ”

"It's been moved to space a long time ago." Ding Yi replied, "Nowadays, most of the industries on Earth have been transferred to orbit and run in the manner of a space city, and the Central Academy of Sciences is the same. Earth is primarily a residential area, and now entering space is as easy as taking the subway. So people in this era live on Earth and go to work in space. ”

This is indeed an unimaginable way of life for Qiao Lu, but it is precisely because of this that a beautiful golden wheat field has been left on this land that was originally the Central Academy of Sciences.

"That's not all, let's go faster." Ding Yi urged.

It seems that this is indeed not a bad era, and there may have been detours, but now that humanity is back on track, history is probably moving forward in twists and turns.