Evil Spirit Consultant

Chapter 206 Parallel World
The group came to Koizumi Ling's home. At this time, Koizumi Ling's father had not yet gotten off work, so they could discuss some troublesome issues.

"So... you said you are from a parallel world? Is this your special ability?" Yang Liu sat at the table with her hands crossed under her nose.

"Yes, I was born with this ability. Under normal circumstances, I can move through space, but since I awakened, I lose control every once in a while. When I lose control, I travel to other parallel worlds."

Koizumi Ling No. 2 from the parallel world was somewhat unhappy with this atmosphere, but it seemed that she had an inexplicable fear of Yang Liu, so facing Yang Liu's gaze she could only sit upright in the chair and answer questions honestly.

Yang Liu nodded in understanding, and then turned her gaze to this world's Koizumi Ling: "Then, when did you meet her, and why did she come to school in your place?"

Xiaoquan Ling lowered her head and was afraid to look into Yang Liu's eyes: "I met her last night. I was planning to go to the observatory to find you, but halfway there I felt a strange call. I followed the call and walked for a while before I saw her."

"Huh? Observatory? The middle of the night, a man and a woman alone, oh~ I thought the other me was a loner, but I didn't expect you to be so bold." Koizumi Ling No. 2's eyes lit up as if he had discovered a blind spot.

"It's a misunderstanding! There were other people at the observatory at that time!" Koizumi Ling explained hurriedly.

But no matter how she explained, Koizumi Ling No. 2 still had that teasing expression.

Ignoring the two people's quarrel, Yang Liu recalled the scene of last night and felt something was wrong: "When did you see her? Before or after sending me a message?"

Xiaoquan Ling was stunned: "I sent you a message right after I met her, what's wrong? Is there a problem?"

"Well... a little bit, but I'm not sure right now. I have to wait for me to ask a professional." Yang Liu stroked his chin and began to think.

If this is the case, then the strange phenomenon that occurred during the seven planets conjunction has nothing to do with Koizumi Ling No. 2...

No, we cannot confirm that there is no connection at all.

Yang Liu thought for a while and raised his head to ask: "Then why is it your Unit 2 that came to class today?"

"Who is Unit 2?"

"Teacher, that's not what I meant..."

Koizumi Ling comforted herself in the other world, and then answered a little embarrassedly: "Well... She said she would stay in this world for ten days before going back. Since she had no place to live, I let her live in my house. Later, she said she wanted to visit the scenery of the new world, so..."

"So you're letting her come to school in your place today?"

Yang Liu held her forehead helplessly: "Aren't you a little too naive, kid? Not to mention that we can't prove whether what this guy said is true, we don't know whether she is really from a parallel world.

Even if she is really you in a parallel world, how dare you take her to your home and even let her replace you in life - if this guy has any ill intentions, wouldn't it be easy for him to replace you later?"

"Ah... this..." Koizumi Ling lowered her head in embarrassment.

At the beginning, because of the miraculous connection between the two sides, Koizumi Ling easily believed what she said in the parallel world.

But she actually figured it out later, and then found out that the other party did not return home in time, so she hurried to Nokonoshima to look for him.

"Hey, hey! Uncle, who are you looking down on? I have my own life! Do you think I would care about her world? After these ten days, I can go back to my normal life!" Koizumi Ling No. 2 protested in dissatisfaction.

Yang Liu blinked, glanced at Koizumi Ling, and then gave Koizumi Ling No. 2 an apologetic smile: "I'm sorry, it's indeed a bit unfair to you what I said."

"Ah... Oh, no... It's okay. Uncle, you're good-looking. I forgive you." Koizumi Ling No. 2 was slightly stunned, as if she didn't expect Yang Liu to actually apologize to her. She was even at a loss for a moment, and even her voice lost that sweetness.

Yang Liu smiled and nodded. Based on his experience studying psychology, he could tell that although this girl hid it well, she was probably a kind person deep down in her heart.

This is very similar to Koizumi Ling, who believes the other party's claim that she comes from a parallel world.

"Since you come from a parallel world...are you from a parallel planet or a parallel universe?" Yang Liu thought for a while and asked.

Koizumi Ling, who was standing by, was the first to ask, "Eh? Teacher, what does this mean?"

When Xiaoquan Ling No. 2 heard Yang Liu's question, he laughed, crossed his arms, and straightened his chest: "Hehehe! It seems that you are not that kind of brainless guy, you know a lot!"

Yang Liu explained it to Koizumi Ling in this world.

The earliest concept of parallel worlds should come from Everett's many-worlds interpretation in quantum theory.

Simply put, an event can produce different consequences, and all possible consequences will form a universe.

This is also the most commonly known parallel world theory among the public, but it is actually just a way of explanation similar to Schrödinger's cat, and does not mean that such a thing really exists.

If it is a parallel world in the real sense, then there are three relatively organized related theories at this stage, namely the dual universe (mirror anti-universe) theory, the infinite universe theory and the bubble universe theory.

However, considering that Koizumi Ling No. 2 has actually landed on this planet and does not seem to have too many discomforts, the parallel world she mentioned is definitely not adapted to the dual universe (mirror anti-universe) theory and the bubble universe, because the cosmological constants of the parallel worlds in these two theories should be different.

"What is the theory of infinite universe?" asked Koizumi Ling curiously.

"Well..." Yang Liu scratched his hair, thinking about how to explain, "Many people confuse parallel worlds with multiverses, but this theory is actually a mathematical concept based on astronomy, a bit like the probability problem of the infinite monkey theorem.

The universe itself is very large, and it is expanding at an increasingly faster speed than the speed of light, so the size of the real universe is unimaginable.

Under normal circumstances, what people call the universe actually refers to the area with a diameter of about 930 billion light-years centered on the earth, also known as the observable universe, which is generally considered to be a very small part of the real universe.

So if we divide it by size, the order from small to large should be the observable universe, the real universe, and then the multiverse. The parallel world in the infinite universe theory is actually a concept that belongs below the size of the real universe.

Simply put, the world is made up of various basic particles, including various materials and energies, and even you and I are made up of particles. So theoretically, as long as the number of particles is large enough, there must be an area where the basic particle composition is exactly the same as the current basic particle composition of the world we know.

The size of the real universe is sufficient to provide such a basic number, and can even extend the concept of infinite parallel worlds.

If the basic particles that make up the planets are exactly the same, then it can be called a parallel Earth. If the particles that make up the entire star system are the same, then it can be called a parallel solar system.

And judging from the size of the real universe, let alone parallel Earths, even parallel observable universes are probably nearly infinite in number.”

"How is it possible..." Xiaoquan Ling opened her mouth in shock, "The universe... is this so big?"

Yang Liu nodded in agreement: "It is indeed exaggerated, the size of the real universe even exceeds the imagination of most people.

Although many literary works nowadays are full of multiverses, if their plots are brought into reality, many of them do not even go beyond the concept of "galaxy". "

(End of this chapter)