"What is the World Line?"

Rasul took Mia and Mi'er down the ruined streets, explaining to the two little girls.

"The world line is the world under the probability distribution."

"When you toss a coin, it's close to 50 percent of the time that it's heads up and tails."

"But when the coin hits the ground, there is only one outcome, either heads up or tails."

Rasul flicked a coin with his fingers and then covered it on the back of his hand: "Guess, which side up?" ”

"I guess positive." Miel said.

"Then I'll guess the opposite." Mia said.

Rasul removed the hand that was covering the coin.

Face up.

"What is the probability of a heads-up at this point?" Rasul asked Mier.

"What are the probabilities at this point?" Mi'er said confusedly, "Isn't it already decided?" 100%？ ”

"That's right." "Why has the probability of a positive face changed from 50 percent at the beginning to 100 percent now?" ”

He asked himself, "Because in the process of tossing a coin, your observation caused the world line you were in to collapse." ”

Mi'er was thoughtful, and Mia's face was confused.

"On the long axis of time, there are two changes in the world line at every moment, one is collapse, and the other is divergence." Rasul continued on his way, explaining, "Before you toss a coin, the world line diverges from this point and splits in two, with the left future line facing up and the right future line facing tails. ”

"When a coin is tossed, your world line starts to collapse, and there is an equal chance of collapsing to the left and right, both of which are 50%. Once it has collapsed, the coin turns face up, and your world line collapses to the future line on the left with your observation. ”

"So the question is, does the future line on the right for you, that is, the parallel world where the coin is 'tails up', exist?"

"According to you, there should be." Miel replied, "From the moment you toss the coin, the world line has collapsed to the left, but the future line on the right still exists, but we can't observe it because of the collapse. ”

"Yes, you understand what I mean." Rasul looked at her approvingly, and glanced at Mia again. The latter forced himself to calm down and made a look of "I also understand".

Rasul sighed inwardly.

"In this world, we are facing probability all the time." Rasul continued, "When you wake up in the morning, brush your teeth or eat breakfast first? Defeated the robber who tried to rob him, should you kill him or let him go? When you meet your beloved, confess or continue your crush? ”

"Will it rain tomorrow? Will a passerby have a sudden myocardial infarction? Will the ticket I bought last month win? ”

"Every probability** represents a possibility in the future. Infinite probabilities**, permutations and combinations into an infinite number of possibilities, also diverge from an infinite number of future lines. When probability** tosses its 'coin', the world line collapses into one of the future lines. This future line becomes the world line we observe, and continues to diverge forward with an infinite number of future lines. ”

"Wait." Mi'er said suddenly, "I remember Nora saying that all probabilities are actually pseudo-probabilities. ”

"When tossing a coin, the angle and size of the passage used can actually determine the direction in which the coin falls; Changes in the weather can be determined by monitoring the atmosphere; Even the most unpredictable of human thoughts are essentially biological reflexes based on the structure of brain tissue and past memories. ”

"If you can fully interpret every molecule and every bioelectric signal in the brain, you will be able to fully grasp the output with the knowledge of the input. In other words, there is no such thing as an absolute random probability, so it is doubtful whether the world line will diverge into countless future lines at this time, right? ”

"You're right. In a macro architecture, probabilities appear to be pseudo-random. "But in the microscopic world of quantum mechanics, probability waves are real and have been mathematically proven." ”

"Is that so?" Miel pondered.

Mia:???

Mia maintained a sluggish "ah, so that's it" expression throughout the whole process, and her gaze had already diverged like an infinite number of future lines, as if she was sleepwalking.

"Let's talk about supernatural abilities again." Rasul continued, "The 'Luck' sequence, the bloodline ability to manipulate luck, is essentially the control of the tendentious collapse of the worldline. ”

"When you succeed in condensing the law of fate from the sequence of luck, you can get a first glimpse of the divergent future line, or manipulate parallel world lines. One of the simplest applications is to pull you out of parallel worlds. ”

Rasul stretched out his hand and pulled out another identical Rasul from the void. The two Rasuls looked at Mia and Mi'er, and after a few moments, one of them dissipated.

"What I pulled just now is the Rasul of the adjacent world line, and because the time point of divergence is relatively close now, the Rasul of this parallel world is almost no different from myself."

"I can communicate with him and ask him to help me fight, or something else, etc. Of course, since he and I are in a very close world, the roles we can play are also highly overlapping. ”

"So, what will happen if Rasul pulls out the world line farther away?"

Rasul stretched out his hand again, this time his expression was much more solemn, as if it had consumed more spirit, and the action of pulling seemed to be extra laborious.

Finally, he pulled a slender figure out of the void, this time it was a woman.

"As you can see." The woman covered her mouth and laughed, "I'm Rafali, 'Rasul' from another parallel world. ”

"To be exact, she is another distant future thread that emanates from me before I become a fertilized egg." Rasul also explained, "She is a woman, and she is an ordinary human, not an extraordinary being, and has nothing to do with the Assassin Order. ”

"That's right." Rafali looked at Rasul with interest, "In my world, I married a high-ranking Templar and bore him three sons and two daughters, and my life was uneventful, but warm and happy. ”

"But I never thought that I would be a dangerous assassin in another parallel world." Rafali muttered, and the figure quickly vanished into the void again—Rasul dissolved her maintenance.

"As you can see, the further back the divergence point goes, the farther away the divergent future line is from where we are, and the greater the difference between the 'me' corresponding to the parallel world and myself. Of course, the more spirituality is consumed. ”

"So, if I can condense the laws of fate, can I do it like you?" After deep thought, Mi'er asked, "Pull out of the parallel world, me?" Or is it something else? ”

"That's right." "But you must first condense the laws of fate. ”

"And the premise of the law of cohesion is to receive the gift of fate from me." He took out a golden pocket watch from his bosom, the shape of which was blurry and clear, transforming into a golden apple.

"This is the Fruit of Eden, an incomparably powerful weapon of destiny. It has two effects: it can manipulate people's hearts, like the Eden in the Bible, which turned into a serpent to bewitch Adam and Eve, and it allows you to bury an ingenious backdoor in anyone's mind, allowing you to stealthily manipulate each other without expending spirituality. ”

"The second is to manipulate fate. It can help transcendents with the 'Law of Destiny' to see clearly the scattered worldlines ahead, as well as the parallel worldlines that have been scattered. Not only can it help you pull any object from the parallel world, but it can even shuttle you back into the parallel world. The latter requires you to become a demigod and do so with its help. ”

Legend has it that after Adam and Eve were tricked into eating the fruit of Eden, they had the wisdom to see through the future. The Eden Fruit is such a powerful artifact, as long as you have it, you can have a limited glimpse of the future, while manipulating the current world line to selectively collapse, and eventually gradually get closer to the future you want. ”

It is for this reason that the Antichrist has been passed down through the papacy and in the trail of Raphael. Because the Eden Fruit is the sacred object of the revolutionary army and the highest holy weapon in the realm of destiny, its ruler is not only responsible for guiding fate to a brighter future, but also has to follow the footsteps of fate and be at its mercy. ”

"It guides you through ritual quests, and at the same time presents the future thread in front of me, allowing me to take the initiative to find you. This is the choice of fate, and it appoints you to take it from me, inherit the legacy of the revolutionary army, preside over the supreme artifact of fate, and become the next Antichrist! ”

Raphael held the fruit of Eden high and said with an unusually solemn expression. With his impassioned words, the surface of the Eden fruit gradually cracked, exuding a dazzling and intoxicating brilliance.

"I see what you mean." "But I refuse. ”

"Why?" Rasul's expression remained unchanged, as if this had not been his surprise.

"Because I don't want to be at the mercy of an apple." Mi'er said.