Working Prophet.

Chapter 20 Basic Theory of Interplanar Travel
"According to the current level of technological development and the restrictions of relevant policies and regulations, it is difficult for us to mine beliefs on a large scale on the earth. Now that the sinking road has been blocked, the only option left for the company is to go to sea. "

Xu Mengyuan said, "Next, let Hephaestus introduce you to the basic theoretical knowledge related to interplanetary travel."

"Happy to help." The handsome half-breed guy also found a chair and sat down, rubbing his hands together, "Where do we start, um...you've heard of string theory, buddy."

"I heard some."

"Very well, then I will try to make a long story short. According to the theory of eternal inflation proposed by the Soviet physicists Alexander Vilenkin and Andrei Linde, the universe we live in is like a bubble, composed of quantum fluctuations caused by.

"And there are infinitely many similar bubbles. They are constantly being created and dying, without beginning or end. To help you better understand this theory, you can imagine a bottle of Coca-Cola being shaken crazily, and one of the bubbles is where we are universes, and other bubbles are other universes."

"Most of the time, our universe is stable and lonely, growing and expanding on its own, but there are also times when we collide with other bubbles. We researchers call this phenomenon interference.

"Usually, the interference is silent. The vast majority of creatures in the two universes don't feel the interference at all. They don't know when it starts or when it ends. The interference Has little effect on the universe.

"Until the founders of the Tertiary era unraveled the secrets hidden behind those ancient myths and discovered that we can use interference to travel to another universe, this technology is also called advent today."

"Descent in the early days is a very, very dangerous thing. It is probably equivalent to sticking your head into a crocodile pond full of crocodiles. Because of the different Calabi-Yau manifolds, the physical rules of different universes are likely to be very different. .

"Going to a universe with a different Calabi-Yau manifold is basically the same as committing suicide. Fortunately, there are enough bubbles. After trial and error, later researchers gradually worked out the search for approach to the same Calabi-Yau manifold universe.

"Then the screening criteria were further narrowed, and finally we selected a new world that was similar to our world."

"What does similarity mean?" Li Yu asked.

"If you quantify it, it is probably a world where the deviation is within 5%. There are climates, geographical environments, animals and plants that we are familiar with... The most important thing is that classical physics is completely applicable." Hephaestus said, "We call These worlds are pure lands."

"However, it is not enough to find a suitable plane and master the technology of descending," Xu Mengyuan interjected, "It's as if you have set a destination and prepared a ship for sailing, but in the end you still need a person to pilot it." it.

"—Captain, is the key to all this."

"That's right, only a very small number of people in this world have the ability to cross universes and descend from one universe to another." Hephaestus continued, "I want to visit another universe even in my dreams, no matter the price. I wouldn't regret it if I died there in the next second, but I never had that chance in my life."

The handsome half-race guy sighed, with a look of regret, "Ordinary people like me are doomed to only rely on our barren imagination and your descriptions to experience its magnificence, and pray that we can meet it in a dream .”

"That place is really beautiful," Li Yu said. "It's a bit like medieval Europe, with a little fantasy element added. The most powerful empire there was established by half-orcs, humans, and gnomes, but there is no magic and magic. Magician."

"Orcs? Like in The Lord of the Rings or..."

"There are animal ears, and the appearance is not too different from that of humans."

"Damn!!!" Hephaestus swears uncommonly, "The only thing I can't refuse in this world is furry! Now a world full of furries is in front of me, but I can't take my fancy It's not fair to even glance at it! It's not fair at all!!!"

"We can discuss your sexuality later." Xu Mengyuan glanced at the time, "The next time we come, we can start soon, you'd better focus on the key points first."

"Okay." The handsome mixed-race guy had to suppress the impulse in his heart, "Next, I will introduce you to a few principles related to the advent, but I believe you have noticed some of them."

"First of all, you can take things from this world with you."

"But only what my body can touch?" Li Yu said.

"Bingo! Wow, buddy, your observation skills are really good," Hephaestus praised, "and at this stage, the things you can bring together cannot weigh more than five kilograms. It can't be live food, not even uncooked seeds.”

The handsome mixed-race boy's words also explained why Li Yu's mobile phone, watch and clothes were all there before Li Yu's first arrival, but the wallet and tissue in his pocket were gone.

Fortunately, the latter two items were still in the room when he returned.

"What about the germs?" Li Yu asked again, "It's impossible for the bacteria and viruses on my body to disappear along with them, right? What impact will they have there?"

"This is a very interesting question. I have seen similar discussions on many forums before. I think most people have more or less overestimated the power of those modern germs, although many people like to use the American continent Take the Indians as an example.

"But these people ignore a premise, that is, the smallpox brought by the European colonists is itself the most devastating infectious disease in human history, and there are also influenza viruses, the Black Death, and the coronavirus that is now raging , our old friend AIDS and more...

"But if it is a healthy person, the germs it carries will have a very limited impact on a similar new environment. In fact, Eurasians had arrived in America long before the Great Geographical Discovery. The germs they brought with them didn't destroy it either."

Seeing that Li Yu had no other questions, Hephaestus continued.

"Second, you can't bring anything back from that world, no matter the real object or a photo image, and each time you can stay in that world for no more than seven and a half hours of real time.

"Of course, you must have realized that time flows at different speeds in different universes. Our seven and a half hours are not equal to the seven and a half hours over there..."

"Three to one." Li Yu said.

"what?"

"The comparison of time flow between the two sides is almost three to one. I came here for the first time and spent almost a day there."

"You went to a multi-time universe? That's good, it means you have more time to act. Although there is not enough research to prove this, but your watch phone will still show the real world. Time, take advantage of that, and you'll have the opportunity to come back."

"Did the return happen naturally, or..." Li Yu asked again.

"It happened naturally. To that universe, you are like a guest. Once the reception time is over, you will be invited out of the house by the host."

(End of this chapter)