I am immortal with scientific thinking

"The time traveler saved the world, but also destroyed it..."

After hearing the story just now, Lin Chen has vaguely guessed that the world without Taoist Taixuan, Fairy Yueling and others is probably a parallel universe of this world.

The Dead River was created by the human star in his previous life who traveled to this world, based on the Schrödinger's cat experiment.

In the eyes of that great man, a cat can be in a superposition state of life and death, also known as a quantum superposition state.

And every time the observer makes a measurement, this superposition state will be broken, and the cat's life and death will fork into two parallel time and space, resulting in a different world.

The dead river gods that float up one after another are probably the same person from different parallel time and space.

And if different time and space could exist...

'If you really look at it this way, then time itself may not be one-dimensional, but two-dimensional, or even three-dimensional or four-dimensional... It is just for the continuation of our intelligent species that our earliest ancestors adapted to one-dimensional time, so we call it the long river of time and space, because in our view, only time that flows endlessly and always moves forward can guarantee the greatness and immortality of our individuals and civilizations! '

'But if time is really one-dimensional, how can we ensure that there are countless different universes and time in a long river of time and space? '

'When a tributary appears in the long river of time, it means that time is no longer one-dimensional, but two-dimensional, because two lines can form a surface. Zero dimension is a point, one dimension is a line, two dimensions are a surface, and three dimensions are space... The long river of space-time with tributaries is itself two-dimensional time! '

"If every achievement of a Heavenly Lord and every major turning point in history can lead the world in two completely different directions, then over the past millions of years, including the ancient times and the prehistoric era, there is no telling how many parallel time and space have been generated in this world alone..."

"If we add in the countless worlds beyond the Heavens, doesn't that mean..."

Lin Chen didn't know why, but he suddenly felt a long-lost uneasiness in his heart. This feeling was just like when he traveled through time to this universe in the past, in that endless, cold and dead void, he felt helpless and almost dying.

If time is really two-dimensional, three-dimensional, or multi-dimensional, then it means that going back to the past may not be as difficult as we imagine.

Of course, these are not the key points. The key point is that Lin Chen realized one thing.

You know, energy is conserved. No matter how infinite the energy of the explosion from the initial nothingness is, it should have its limits.

And if time is two-dimensional, three-dimensional or even multi-dimensional, in this universe, there are billions of worlds as numerous as the sands of the Ganges, and their history of at least millions of years, and the countless nodes in history that determine the fate of the world...if they are differentiated one by one, then at least an infinite number of parallel universes can be born.

This infinite number of parallel universes contains infinite worlds and gives birth to countless living beings. The energy required far exceeds the energy level that intelligent creatures can perceive.

Such energy beyond human imagination can be fully supplied by just one singularity?

At least in Lin Chen's opinion, the infinite universe created by infinite worlds multiplied by infinite time, no matter how terrifying the energy of the singularity is, it is probably not enough to supply it.

Could it be that the universe is not as orderly as he imagined, and energy is actually not conserved and is created out of thin air, just like a perpetual motion machine?

Or is it that this so-called universe in different parallel time and space is not as solid as he imagined, and perhaps it is not based on matter...

For some reason, Lin Chen suddenly recalled the idealistic illusion of the demon he had seen in the flying boat market, as well as what the demon had said to him in the past:
Do you think this world is real?
And the words left by the ancient monk before he completely disappeared:
Reiki cultivation itself does not exist...

"So the ancient monks disappeared completely because they began to doubt the reality of the universe."

"Fellow Daoist, fellow Daoist..."

Meng Xian's words woke Lin Chen from his contemplation:
"Fellow Daoist, do you seem to have thought of something?"

"I understand some things." Lin Chen nodded unequivocally, "But it probably won't be of any use to you."

"...That's right." Meng Xian was stunned when he heard this and couldn't help but smile bitterly.

"What happened next? How did you deal with the Dead River God?" Lin Chen suppressed the confused thoughts in his mind and continued to ask.

No matter how well a God of Transformation tried to hide himself, he should have known some information after infiltrating the Immortal Alliance for hundreds of years. However, based on his current intelligence, he had not found any trace of this God of Transformation of the Dead River.

Meng Xian heard this and was silent for a moment before saying:
"He disappeared..."

"Disappeared?" Lin Chen frowned. "Did it disappear inexplicably? Time and space are messed up, but didn't you say that the matter is over?"

"We speculate that he does not belong to our time and space dimension, so even if he forced his way into our time and space through the Dead River, he could not stay there for long. What happened later also confirmed our speculation." Meng Xian explained.

"What happened next?" Lin Chen asked, "What happened?"

"That is, a hundred years after this incident, the Dead River Transformed Gods from different time and space that floated up in the Dead River appeared one after another during this hundred years, and then disappeared inexplicably. In their true spirit memories, they were all people who did not belong to our world..."

Having said this, Meng Xian looked at Lin Chen strangely:
"Among them, there are also beings who have experienced the catastrophe of heaven and earth. However, in their memories, there are many reasons for the catastrophe. Some are that the master of the Western Desert Demon Cave has infected the spiritual veins of the entire Middle Earth and caused the Dharma Ending Age. Some are that the Dragon Palace Jiaohuang has made a further breakthrough and set off an endless sea tide that swept across the East China Sea and the Middle Earth. There is also that the immortal heavenly anomaly in the northern border grassland has turned into an ancient evil creature... But in their different memories of time and space, there are two points that are exactly the same."

"Two points? Which two points?" Lin Chen asked.

Having said this, Meng Xian did not speak immediately, but looked at Lin Chen deeply, and after a long while, he slowly said:
"In those different time and space lines, no matter the time, cause, process, or everything else that happened, they will inevitably converge to two points in the end..."

"First, the ancient treasure, the moon, which has been guarded by the Sun and Moon Palace for millions of years, will fall from the sky."

"Second, at the end of this catastrophe, it was the same existence that saved this world and destroyed it. He was both the savior and the destroyer, and he was..."

"Your Excellency, the traveler from a foreign land."

Having said this, Meng Xian said no more, but kept staring at Lin Chen, as if trying to see through his essence through his appearance.

But the latter's expression remained unmoved, but he couldn't help but feel doubts in his heart.

He is both the savior and the destroyer. Hearing this, Lin Chen, for some reason, suddenly recalled the eternal demonic calamity that warned the heaven and earth hundreds of years ago...

It seems that the evil star being referred to is him?
He was not surprised by the final victory. After all, if he did not even have the confidence to dominate an entire era, how could he surpass Canghai, Tianmo and other strongest people of the era who were considered to be extremely talented even in millions of years, and ascend to the supreme position of heaven and earth.

So what really puzzled Lin Chen was why he would choose to destroy the world in the future... No, to be precise, it was not the destruction of the world.

After all, in his late stage, if he really wanted to destroy the world, he could just refine the earth, wind, water, and fire and recreate the world. There was no need to pollute a world and let it slowly decay and die. This was the most labor-saving and troublesome method for him.

Not to mention that the evolution of this doomsday world has absolutely no benefit to him. A complete world, a force that can conquer the heavens, and a civilization that has been passed down for endless years... are the most precious wealth to him.

Perhaps it was a foreign invasion that forced him to take this step?
But if he really defeated Hanba, Tianmo and others and ascended to the position of Lord of the World, then at that time, let alone the ancient tribes and the old Si Sui, even the evil gods from outer space would not be his opponents.

Apart from the ancient cultivators and the immortals in this universe, no one could threaten him at that time, and they had long disappeared in the eternity of time. Even if they returned, the former would not do such a thing...

"So what will happen in the future that will make me make this choice?"

Lin Chen asked the doubts in his mind.

"I don't know." Hearing Lin Chen's question, Meng Xian shook her head, "I originally wanted to get the answer from you, but I can see that you are also very confused about this matter. Turning this world into a decadent and corrupt end is not in the interests of the Demonic Path. It seems that something beyond your expectations has happened in the future, so you made this decision."

"As for what exactly happened, I don't know..." Meng Xian sighed, "For this reason, we, the Nanhua Dream Sect, came to this dream of the end through the other party's dream medium, but we still know very little."

"We can only roughly know that at the moment of the catastrophe, the whole world suddenly changed drastically."

"More than 99% of billions of lives perished instantly, and most of the remaining lives were also contaminated by this strange power that was different from the ancient demonic energy. Civilization completely collapsed in an instant, and the inheritance of millions of years was burned to ashes."

"The only people who survive on this earth today are the survivors of the old times. They have forgotten the history of the past and can only follow this decadent world to its end..."

At this point, Meng Xian sighed:
"We, the Nanhua Dream Sect, have come here. All 721 of us have come to this world, just to turn the tide and completely reverse this dream of the end, to see if we can find a glimmer of hope for the future of this world. But unfortunately, human power cannot defeat destiny, and we will fail in the end..."

Lin Chen was silent for a long time before he said:
"You can return to reality and seek help from the real Immortal Alliance. Why did you all die here?"

"We had this idea at the beginning, wanting to return to reality and seek help from external forces, but unfortunately, the demon followed the traces of Nanhua Mengshan and tracked us here..." Nanhua Mengxian said calmly, "Although we don't know how the demon did this, we can be sure that his arrival here is by no means a lucky thing for the billions of lives in this world."

"At that time, it was already difficult for us to escape from this world, and we encountered the devil blocking our way. We had no chance of survival. All 721 members of our Nanhua Dream Sect died in battle, and sank into the depths of the dreamland along with the dream of the end of this world, just to prevent the devil from infecting the sentient beings of this world..."

Hearing this, Lin Chen was stunned for a moment before he said in a deep voice:
"does it worth?"

"There is no such thing as worth it or not. If the country is not disgraced, then you are the master of the country; if the country is inauspicious, then you are the king of the world." Meng Xian looked directly into Lin Chen's eyes at this moment, "Since we, the Nanhua Dream Sect, have enjoyed the rights of the nine major immortal sects, we must assume corresponding obligations and protect the dreams of all living beings for millions of years, so that all living beings in the world can have a good dream. This is our Nanhua Dream Sect and also my way."

"For us, as long as we can stick to the path, life and death are nothing but an illusion. What is there to fear?"

“… Indeed, if I hear the truth in the morning, I am willing to die in the evening.” For some reason, after hearing these words, Lin Chen suddenly laughed, “As long as I can find the truth in my heart, even if everything in the world is illusory, I will not regret it even if I die nine times!”

"Haha, great! You fellow Taoist are indeed one of my kind!"

Meng Xian also laughed at this moment, revealing her true nature. She no longer looked like a reflection in memory who only left a last word, but like a living person.

"This dream contains the dream tradition of our Nanhua Dream Sect that spans millions of years. I came here this time just to entrust you with a favor."

Meng Xian's expression became serious at this moment.

"Hmm? Could it be that fellow Daoist wants me to rebuild the Nanhua Dream Sect in this world?" Lin Chen was stunned and asked.

“No, our inheritance has been sensed by the demon. Once it is revealed to ordinary cultivators, it is very likely that it will find traces and bring this doomsday dream to the world, causing unimaginable consequences…” Meng Xian refused. “What Meng Xian wants this time is that I hope that fellow Taoist can carry this dream in the future and prevent or save all this from happening!”

Lin Chen thought for a moment and said:
"But, this matter was caused by me, so it is natural that I should end it!"

"Then I'll leave all this to you..."

After saying this, Meng Xian's tone suddenly relaxed, as if the obsession that he had held on for a long time completely dissipated at this moment, and his figure became illusory at this moment.

And at this moment, the surrounding scene began to quickly become blurred and false, with a sense of unreality, as if it would be blown away by the wind in the next second.

For the future of the people in this world, this Tianzun of the Immortal Alliance led the Nanhua Dream Sect into a dream, trying to save the world, but ultimately failed. Later, in order to find someone to save them, he persisted in the dream for more than three thousand years, and now...

Time to go too.

Meng Xian finally circled Nanhua Mengshan deeply, letting go of all his worries and regrets, and finally sighed:
"Yesterday I was in the long courtyard, today I wake up and everything is empty."

"A hundred years have passed in a drunken life, just like a dream in Nan Ke's sleep."

"Time outside the world is originally self-satisfied, who can control the birth and death of the world?"

"So many things happened in the eternity, but they all passed by like a dream."

"Fellow Daoist, the future of this world is in your hands!"

As soon as he finished speaking, the dream in front of him shattered. In the darkness, a colorful butterfly flapped its wings and came to Lin Chen.

At this point, the Nanhua Dream Sect, one of the nine great sects, came to an end. (End of this chapter)