"The way time works," someone once said a long, long time ago. "Like a river." Rivers can only move forward, not backward. "People, things, things, space and civilization, being in the torrent of time, are like a fallen leaf floating on the river," the person who said this showed a deep and mysterious smile. "The river can only flow to the east, to the lower places, and will not turn back, and it is impossible to turn back. Of course, the leaves can only drift away passively with the flow of the water waves, without looking back..." The fallen leaves on the river, of course, have only the fate of drifting with the current.

"Such a rule is really helpless..." The person who listened to the story sighed in this way. He was a very young boy, but his eyes had deep eyes that did not belong to this age. "But I don't believe that time can only move forward forever. Maybe it is like a river, maybe the river can only flow forward and cannot go back." As he spoke, his eyes suddenly shone with a blazing light. "But the simple water diversion technology can divert the river water, and with the addition of a gravity field, it can even make the river flow towards the sky..." The boy's voice became more and more high-pitched, full of enthusiasm. "So, I don't believe that the flow of time cannot be reversed. As long as I am in this world, I will definitely let time break through all boundaries!"

Seeing such incomparable self-confidence blooming on his youthful face, the speaker suddenly felt a blur in front of his eyes, and in an instant, he only felt that the boy's figure had become extremely huge. It's so big that I can't look directly at it. The speaker was an old man whose life had come to an end. In fact, on the fourth day after this legendary conversation, the old man quietly closed his eyes, leaving behind his great research that changed the fate of countless people in the world. The old man's name is Rong Jieyong, and he is a scientist with extraordinary achievements.

In the early 22nd century AD, as long as Rong Jieyong, a researcher of time, was mentioned, everyone knew it.Because of his time theory, the earth civilization was able to launch the time traveler for the first time in 2073 AD, officially entering the era of time travel. However, such a great time traveler sighed that "time can never turn back" when he was dying. Because of all the time travel experiments over the decades, there has never been a single success in bringing the time traveler back safely. Really, not even the least once. However, Rong Jieyong's premonition before his death was not wrong, because the young man sitting in front of his sickbed, Lu Yipu, who was only 16 years old, inherited his theory in the future and made the theory of time research shine brilliantly A genius born out of nowhere.

In fact, Lu Yipu only lived to be eighteen years old and died in a strange fight. But before he passed away, he had already found out the most important answer to the time theory, that is, the most important thing to study time travel in the future. An important theory: net time theory, also successfully explained the reason why Rong Jieyong's time traveler has never been successful. "Network time theory", in short, is that time is not just a river, but countless rivers. For example, a person walked to a three-way road, hesitated a little, and took the middle road. As a result, the man was safe and sound and went on with his life.

But, in fact, if he had taken the right-hand road, he would have been hit by a car, and his fate would of course have ended. But if he takes the left path, he will meet a woman he likes, marry her shortly after dating, and develop a completely different fate from the path in the middle. In this person's memory, being hit to death by a car and meeting the woman he likes never happened, because the road he walked was the middle road. But in Lu Yipu's theory, it is found that the other two worlds actually exist, because when you make a choice, two other different worlds have already branched out.

Therefore, at the same point in time, there are actually countless spaces coexisting, so Rong Jieyong's time mission did not fail from some perspectives, because he really sent the expedition team to the right point in time. It's just that what was sent was one of the countless time and space parallel to our world. Such a time and space may be similar to the world we know, but it may also be very different. Because of different choices, what forks out is a different world. A bifurcated world without a few ordinary people may not have a big impact on the historical torrent. But if it is a world without Hitler and Einstein, it may look very different.

However, Rong Jieyong's chants to time are unchanging truths. Time is really like a river, whether it is one river or countless rivers. It really only moves forward, not backward. Even in the future history of civilization, there are countless heroes who finally broke through the boundaries of time and accomplished the feat of time travel. Among them, some even went back to the farthest source of time and saw the most magnificent tunnel of time with their own eyes. It was only at that time that they discovered that no matter what state you travel through time, as long as you stop, the flow of time will still accurately control you and let you move forward with it involuntarily.

Traveling through time does not mean you control time. Just like in the 20th century, "landing on the moon" is certainly a great achievement, but calling itself "conquering the moon" is also an act that will make future generations of interstellar explorers laugh. The flow of time flows slowly, rushes away and never turns back. It has flowed through Pangu to open the sky, and flowed through Yao, Shun and Yu Tang. It has flowed through Qinhuang, Hanwu, Robin Hood, and the Lionheart King. Flowed Nostradamas's doomsday prophecy: "1999 The King of Terror descended from heaven..."

Flowed through the first two millennium AD of mankind. The birth ceremony of Pandora nucleic acid that flows through the 22nd century. Flowing through the dead bones of Superman's war. The post-war earth of the 22nd century flows through where all living things are extinct. The earth reconstruction project that flowed through the Venus colony. Also passed the time hero's journey through time and space...