The past ignites old dreams

Suppose you go back in time and kill your grandfather before your father was born.What will happen?

If the grandfather is dead, then you must not exist, and it is impossible to go back and kill your grandfather.

"Grandfather Paradox" was read by Qiao Ran in a science fiction magazine in his free time. He found it interesting and remembered it by accident.

This paradox is supposed to be used to prove that time travel is impossible.

According to the special theory of relativity, a particle moving faster than the speed of light in one frame of reference may go back in time in another frame of reference.Therefore FTL travel and FTL communication also means going back to the past or sending information to the past.

Is causality somehow destroyed when we time travel?

This issue has been debated endlessly in the scientific community, let alone Qiao Ran?He tried his best but couldn't figure out why.

However, what possibilities there will be can still be foreseen.

For example, now, in the world that Qiao Ran knew, it should be Zhu Chongba of Ming Dynasty who was captured by An Yu and locked up in the dungeon of Qinghe Mansion.If he was killed, would there still be a Ming Dynasty?If there is no Ming Dynasty, what about the future?Is there still the Qing Dynasty, the Republic of China and New China?If he is not killed, can this Zhu Chongba overthrow the Dayang Dynasty?If the Dayang Dynasty, which did not exist in the world Qiao Ran knew, was overthrown, what would happen to the Qinghe Cui family?What will happen to Cui Yan?

What will happen to me?

Qiao Ran has been obsessed with this problem for the past few days, and she didn't even go to Yanshuifang to guide her. She woke up thinking about it, and dreamed about it when she fell asleep, feeling that she was not well.

Just when Cui Xuan came back to collect the ledger, Qiao Ran searched the entire Qinghe Mansion, and finally found Cui Xuan who was trying to avoid him in a small courtyard in the mansion.

Cui Xuan seemed to have the ability to predict the future. Qiao Ran didn't even say a few words on the scene. Cui Xuan said, "Now you can't kill Zhu Chongba, he is not Zhu Yuanzhang. You can't help him rebel in the future. If there is no Yang, there will be no more Ming.”

Qiao Ran frowned as he thought about these words, and felt that the circuit in his head was broken with a bang, and there were bursts of black smoke.

Cui Xuan added, "In quantum physics, the world is composed of countless parallel universes. The 'grandfather paradox' you mentioned to me can be explained by M theory. When you go back in time and kill your grandparents, you Killing is actually a person from another universe, your action can also create a new parallel universe, and the death of this person, your grandfather or grandmother will only make the 'you' in that parallel universe no longer exist, and this The "you" in the parallel universe is safe and sound. Of course, these are only theoretical speculations. So far, and in the foreseeable future, there will be no real evidence. In the theory of many worlds, for every seemingly random event That is, as long as its probability is not zero, all its possible scenarios will occur in different parallel worlds, causing branches of history."

Qiao Ran was speechless.

Cui Xuan's understatement brought a touch of disdain, "Do you have a little knowledge of physics?"

Qiao Ran: "Is this common sense?!"

"One cannot step into the same river twice." Cui Xuan said, "You must have learned it in politics class!"

"You told me about politics?! I...I'm really... speechless! Forget it—" Qiao Ran slumped on the horizontal chair as if he had broken his backbone, and said in silence for a minute or two , "Things have come to this point, I can't do anything, I can't do anything. Is it that I am destined to stay here in this life and have no chance to return to my hometown?"

"What is the homeland?" Cui Xuan asked back, and immediately said, "Time is only a subjective product of human beings, a parameter used to describe the process of material movement or the process of events, but you must clearly know that time is not an objective law. The deceased Rusifu, never give up day and night, so no matter how many years apart, the place you stand is still China. The homeland you mentioned has never left. Qiao Ran, for unknown things, let alone human thinking, Not even the imagination. Not all worlds where one plus one equals two."

Qiao Ran had a half-knowledge, but he no longer had the interest to think academically, "Don't talk to me about it, I'm really tired."

Cui Xuan sat with Qiao Rangan for a while, Qiao Ran returned to his soul, patted his buttocks and left.Cui Xuan watched Qiao Ran leave, and was in a daze for a while, worrying about everything.Everyone has his own destiny, what should he do against it?What's the use?Cui Xuan bowed his head and closed the door with a moan.

The dungeon in Qinghe Mansion is a bit like Qiao Ran's basement when he lived in Beijing. Each single room is arranged squarely and side by side. It is neither dirty nor dark nor scary. It is completely different from the scenes in movies and TV dramas.

Qiao Ran also came to this "dungeon" for the first time.Xiaohu took him to one of them, "Master, this is the one."

"Okay, where's the key?" Qiao Ran spoke quickly, "Open it."

Zhu Chongba got up unkempt when he heard the lock.

Seeing that it was Qiao Ran, he wasn't too angry, and greeted him familiarly, "Chong Ba has met Master Qiao."

How embarrassing was Qiao Ran to be called "Master" by a generation of emperors, and he stood opposite for a long time before saying, "Sorry, just think I misidentified the person."

Zhu Chongba didn't say anything, just grinned.

"When someone takes you to take a bath and cleans up for you, I will also ask Xiaohu to prepare a sum of money for you and some compensation, and I hope you will accept it."

"I can't afford it! I can't afford it!" Zhu Chongba was terrified.

"That..." Qiao Ran hesitated, "What are your plans in the future?"

This question seemed to be a bit unexpected. Zhu Chongba's shoehorn showed surprise on his face. He opened his mouth and replied, "I don't have any plans. Take every step and count. Everywhere you go, you'll just make a living."

Qiao Ran was thoughtful, frowned, and walked a few steps in the small cell, "Well... are you interested in plowing the fields for farming?"

Zhu Chongba felt that Qiao Ran was even more strange, and he asked in disbelief, "Master, do you still want to reward me with land?!"

"It's okay, as long as you don't make trouble."

"Me?! How could I cause trouble! This—this is a misunderstanding. The uncle admitted the wrong person and arrested me, but he didn't do anything to me. Instead, I stayed here without worrying about food, clothing, and three meals. To the uncle You don't complain, you...you don't do that."

Qiao Ran didn't say any more, and before he left, he gave Zhu Chongba a deep look. He had mixed feelings and was extremely complicated. He thought to himself that it would be counterproductive, as Cui Xuan said, let nature take its course.

Leave it to God, there's nothing I can do about it.

Qiao Ran explained about Xiaohu's entanglement with Zhu Chongba, and then went back to Chenmenglou slowly by himself.

He also remembered a passage of Xiao Hong’s words written by Cui Xuannian: I just want to live vigorously at this moment, it doesn’t matter where I go or who I see, the places I’m going to are the hometowns I’ve never met; the places I’m going to meet Everyone will become my friend.I can't choose how to live or die, but I can choose how to love and live.

how to lovehow to live

Since I was a child, I have never really thought about this issue seriously.Moreover, he has been honed by real life to become a person who cares about his interests. He has to think twice about making decisions. Instead, when he comes here, he doesn't have to worry about anything, and his life is getting more and more nervous.Qiao Ran thought about it, staying in the Dayang Dynasty was like Zhu Chongba staying in the dungeon, with no worries about food and clothing, three meals a day, and even his thoughts returned to the original.

You can't go if you go, and you can't stay if you stay.Stay and live with Cui Yan's family?Lu Mingzhu is married to a medium, but what is she, a male mistress?How ridiculous!Perhaps this was a normal phenomenon in ancient times, but after all, Qiao Ran has some universal values ​​of modern people, and it is too difficult to convince herself.But if Cui Yan is forced to ignore the family, Qiao Ran can't do this kind of thing anyway, let alone who can force Cui Yan, Qiao Ran asks himself that he is absolutely not so important in Cui Yan's heart.

If I go, let alone whether I can go successfully, even if I can go back, will I be able to return to the original parallel world?This kid Cui Xuan will not make up out of thin air that I have died in an air crash.In case...what he said is true...then I...

Lu Wenyu called Qiao Ran for the third time, and Qiao Ran finally heard her.He turned his head in a daze, with a lingering sense of loss in his eyes.

Lu Wenyu: "Brother Qiao, what's the matter with you? Just now I saw Xiaohu sent Zhu Chongba out of the house. Has the holiday with you ended?"

"He and I...in fact, there is no holiday." Qiao Ran's eyes cleared up, "It was a misunderstanding. By the way, I heard that Brother Lu is going back to Fan Yang?"

"En." Lu Wenyu couldn't hide his reluctance, "Do you want to go with Brother Qiao? Just relax."

"Aha..." Qiao Ran scratched his hair that was blown by the wind, and it became even more messy, "You must be doing business, so I won't add to the chaos. Besides, the horses and horses are busy, I—"

Before Qiao Ran finished speaking, Lu Wenyu's movement made him involuntarily silence.

Seeing that his hair was messy, Lu Wenyu ran her fingers through his hair, with infinite concentration and gentleness, she combed him with her hands one by one, and then said why she didn't use hairpins to tie her hair.

For no reason, Qiao Ran felt stuffy in his heart and sour in his nose. Whenever he couldn't respond to others' kindness, no matter how he pretended nothing happened, he still couldn't hide his guilt, couldn't bear it, and had no choice but to do so.

"Brother Lu, be careful on the way back." Qiao Ran paused, and said solemnly, "I live here and have you as a friend. I...I am very lucky and very happy."

Lu Wenyu smiled slightly, and the time passed by, there seemed to be stars dancing in her eyes, and a lantern illuminated her dream, "I don't want to ask for a confidant, I only want to see you happy."

Qiao Ran was so moved that she didn't know what to do. She was too moved, so moved that she was at a loss and the atmosphere was awkward.

Lu Wenyu is a smart person, and he suddenly mentioned, "By the way, Brother Qiao, since the concert at Yanshuifang that day, do you know how many people you have been kind to?"

"Being kind to others?"

"That's right, just the owner of the cloth dyeing workshop bought a new shop in a few days. You taught them the technique of dyeing inferior colors and helped them earn a lot of silver. And the peony stage you built, I heard that the big families have invited craftsmen to set up the same table in their own yards. They usually entertain guests and feel that it is a novelty. The costumes, hairstyles, and songs at the concert are, as you might expect, very popular Recently, Yanshuifang has a lot of customers coming to Luoyi, and Yun Tiao wanted to come to thank you several times, but I saw that you were worried about Zhu Chongba, so I told her to meet another day."

"Oh oh oh!" Qiao Ran said repeatedly, "I have promoted economic development again hahaha!"

Seeing his hearty smile, Lu Wenyu raised the corners of her mouth in relief.

The spring smoke is red, the camellia is beautiful.

After parting with Lu Wenyu, Qiao Ran returned to Chenmenglou.Since Cui Yan left, he felt more and more deserted here.Winter is over and spring is here. All kinds of flowers in the yard are competing to bloom. When the wind blows and the rain falls, the ground is full of purples and reds. It was a beautiful day, but in the eyes of sad people, it only adds to the sadness. .

Xiaohu looked at Qiao Ran feeling depressed after the concert, and was worried, so he didn't dare to reveal that matter.

The more he kept it secret, the more he ran into Qiao Ran which pot was not open and which pot he was carrying. Qiao Ran asked Xiaohu why he hadn't seen Lu Mingzhu recently. Staying behind closed doors is for your health.

Originally, Qiao Ran was just asking casually, but Xiaohu's constipated face made him suspicious, "Why do you look so weird?"

However, Qiao Ran's mind was spinning extremely fast at this moment, and she said again: "Oh? How did I hear..."

In the past year, Xiaohu has followed Qiao Ran around, and has regarded Qiao Ran as a member of the Qinghe Cui family. For a long time, the friendship between master and servant is high. On weekdays, Qiao Ran is a good person who is loved by everyone. Xiaohu doesn't want him to be wronged. Before this matter was said, Xiaohu had already wronged Qiao Ran secretly. Now that Qiao Ran was making sidelines, Xiaohu couldn't bear to hide it. He said dejectedly, "Well, this is actually a happy event, but I Just to feel wronged for the young master, the eldest lady of the Lu family—she is pregnant."

Qiao Ran listened carefully, and turned her head away after listening.

Xiaohu couldn't see his expression, but Qiao Ran said briskly, "That's really overjoyed, and Cui Yan will be happy too."

"Does everyone know?" Qiao Ran asked again.

Xiaohu lowered his head and rubbed his hands, "Everyone knows."

"Oh, it turned out that I was the only one who was not known."

The author has something to say: 1. The Grandfather Paradox: "The Grandfather Paradox": A famous paradox that prevents time travel from happening: If you travel through time to the past and kill your grandfather before your mother was born, marry Your grandmother, so who are you yourself?For details, please refer to the information yourself.

2. Special Theory of Relativity: The special theory of relativity was created by Einstein, Lorentz and Poincaré, etc., and it is applied to the space-time theory under the inertial frame of reference.It is also an expansion and revision of Newton's space-time theory.According to the special theory of relativity, when an object moves, its mass will increase with the speed of the object, and at the same time, space and time will also change with the change of the speed of the object, that is, the scaling effect and clock slowing effect will occur.

3. Parallel universes: The multiverse is a theoretical collection of infinite or finite possible universes, including everything that exists and may exist: all space, time, matter, energy, and the physical laws and physics that describe them constant.

4. M theory: M theory is a theory proposed for the "ultimate theory of physics", hoping to explain the nature and interaction of all matter and energy through a single theory.It combines all superstring theories (five in total) and the theory of supergravity in eleven-dimensional space.

5. One cannot step into the same river twice: the words of the philosopher Heraclitus.Since Heraclitus admitted that the universe is an unquenchable fire, which is constantly transformed into everything, and everything is constantly transformed into fire again, the idea of ​​change must occupy an important place in his philosophy, so that later People call his philosophy the philosophy of change.

6. The dead are like a man, never giving up day and night: A famous saying of Confucius refers to the time that passes away like flowing water and never returns.From the Analects of Confucius "Zihan".