With a pair of panda eyes that were no longer so obvious, Chen Yi dragged his heavy steps and walked through the purple forest.

After six hours of traveling, the trees around him thinning and the ground no longer muddy, he was sure he was on the edge of this primeval forest. Maybe in a few hours, you'll be able to get out completely.

Wiping a handful of fine sweat from his forehead, Chen Yi slowed down a little, unzipped his backpack, took out a bottle of mineral water from it, unscrewed the cap, and took a small sip of restraint.

"Take a break. ”

There was a cold voice from Bai Xue behind him, Chen Yi nodded, found a nearby tree and sat down, rubbed his ankles that were swollen to the thickness of his calves, and opened his chapped lips weakly: "How long will it take to reach the human territory?"

With her legs bent and a slight leap, Bai Xue sat on the branch of a big purple tree dexterously, grabbed a fruit casually, and took a bite: "Theoretically speaking, this position is now within the territory of your human civilization. ”

"The frontier of the frontier?

"Yes. Bai Xue Sakura's lips opened and closed, quickly finished eating the fruit, and threw down the core: "What?

Subconsciously covering the necklace inside his shirt, Chen Yi shook his head and did not answer.

The three days of rushing made the ordinary people who grew up in the city so tired that they didn't even bother to open their mouths.

After the two of them rested relatively quietly for ten minutes, Bai Xue jumped down and looked at Chen Yi.

Sighing, Chen Yi knew that the rest time was over, so he stood up with the tree trunk, moved his stinging ankle, and walked forward.

"You, what a surprise to me. ”

After walking for a few minutes, Bai Xue suddenly spoke.

Chen Yi cracked the corners of his mouth: "Is it my perseverance that surprises you?"

"No, it's you who are weaker than I expected. ”

Chen Yi: "......"

"I dare say you're probably the weakest one in the entire mirror world. After only three days of walking, he was about to become a cripple. ”

"If you can speak, write a book. ”

"It is inconceivable that a powerful human being could be so weak before becoming transcendent. Bai Xue stretched out a slender finger like an onion and nodded her forehead, as if she was a little proud: "Our Changmei clan, even ordinary people, are all powerful warriors. ”

"Your race is called the Long Eyebrow Clan?" Chen Yi glanced back at Bai Xue's long eyebrows and scratched the root of his ears: "Do you claim to be a civilization of Long Eyebrows?"

"Yes. ”

"What a strange name. ”

"Your human civilization sounds strange to me. ”

"What is it called if it is not called human civilization?"

"The straight monkey civilization is more appropriate. ”

The corners of his chapped mouth twitched, and for some reason, Chen Yi suddenly felt a little unhappy: "You are also a monkey evolution, right?"

"According to your human biology, I'm more like a feline of the Zygokuda. ”

"Cat-eared lady. Chen Yi was stunned.

"What?" Bai Xue was also stunned.

"Nothing. A scene inappropriate for children unconsciously flashed in his mind, Chen Yilao's face turned red, and he quickly changed the topic: "What kind of civilization is this planet we are in?"

"Lancey civilization. ”

"You see, the name of the person is much more normal than the 'long eyebrows'. ”

"It's even more abnormal. Bai Xue shook her long tail left and right, frowned, and said, "You can't have an intuitive understanding of this civilization through the name at all." It's a name that's worse than human civilization. ”

Hearing this, Chen Yi understood Bai Xue's way of thinking a little.

"You said earlier that this civilization is about to go extinct, why did you say that?"

"Scared by you humans. ”

Chen Yi paused: "Don't... No kidding. ”

"I'm never joking. Bai Xue raised her leg and kicked Chen Yi, making him speed up his walking: "In the mirror world, this planet of the Lanxi civilization is very close to the earth. In order to avoid being wiped out by you humans in the future, the Lancy civilization ran out of resources in the real world, assembled a huge fleet of immigrants, and fled all of them. ”

"Leaving this planet?" Chen Yi couldn't believe it.

He is still an ordinary person, and he can't understand the operation of this Lanxi civilization no matter what......

Do you want to save face?

How can it be like this?!

"Yes, except for the old, weak, sick and disabled individuals who remained, the rest are gone, and it has been more than forty years, and the large army should have sailed out of the star system long ago. ”

"That's an exaggeration......

"Now you still don't understand that for a civilization, survival is everything. ”

"So...... Are there other civilizations around that are fleeing?"

"Yes, almost all the civilizations around it are developing space navigation technology and want to escape from their native planet. ”

Chen Yi touched his chin, and a strange feeling in his heart that "everyone doesn't want to play with me".

"Even if it runs away, it's not extinct, right? No matter how bad it is, it's a wandering civilization. ”

Bai Xue chuckled lightly and slowed down her tone: "This is fate, they are destined to be extinct." ”

"What do you mean?"

Stopping, Bai Xue squatted down, reached out to pick up the soil on the ground, and said in an ethereal voice: "There is a fatal mistake in the mathematics of Lanxi's civilization. That's why I say they are destined to be extinct. ”

"What's wrong?" Hearing the footsteps behind him stop, Chen Yi also stopped and turned to look at Bai Xue.

He vaguely guessed that an interesting secret was about to come out of the other party's mouth.

"In their civilization, the Pythagorean theorem is not A² + B² = C². That is, the square of the two right-angled sides of a right-angled triangle is not equal to the square of the hypotenuse. ”

Chen Yi raised his head, recalled the mathematics taught by his elementary and junior high school teachers, and wondered: "Isn't the square of two right-angled sides equal to the square of the hypotenuse? A²+B²=C²That's right." ”

"Yes, there is nothing wrong with A²+B²=C², but in the Lancy civilization, the square of two right-angled sides is equal to the power of the hypotenuse. ”

"S-power, what is this?"

"S is their Pythagorean constant, which is about 1.988. ”

"It should be equal to 2! Although I'm a scumbag, I know this kind of thing. ”

"Yes, that's 2. Standing up, Bai Xue shook off the dirt in his hand and continued: "Only the Lanxi civilization is about 1.988, and even they have calculated thousands of digits after the decimal point. ”

"And then?" Chen Yi asked.

"Then the Lanxi civilization built 10,000 spaceships according to such a false Pythagorean theorem and sailed out of the star system. The only thing that awaits them is destruction. ”

Chen Yi's eyelids jumped.

S = 1.988, which is clearly a false geometric theorem.

A spaceship built according to this formula, from the spliced shell to the structure of the intricately connected instruments, will fall apart if it doesn't fly far, right?

Mathematics and physics are rigorous, and there is no room for error. Otherwise, the consequences will be catastrophic.

"How did they come up with this stupid Pythagorean theorem?"

"I don't know. Perhaps there is a wormhole with a small radius of curvature outside the star system of the Lanxi civilization. As a result, the nearby space is slightly distorted. The Pythagorean theorem is naturally not equal to 2. Bai Xue looked at the stunned Chen Yi and said lightly: "I guessed, but eight or nine is not far from ten." Don't look at me like that, my parents were physicists before our civilization went extinct, and so did I. ”

"Okay...... But even because of the influence of wormholes, such a strange Pythagorean theorem, the scientists of the Lanxi civilization have not doubted it? From the aesthetic point of view alone, a formula cannot be so disgusting, right? 1+1=2, this is concise mathematics. ”

Bai Xue was silent for a long time and smiled: "Yes." A concise formula is the essence of the world. A universe with such a concise formula is a beautiful universe. But...... Don't you think it's strange that your planet has a pi of 3.1415926?"

Chen Yi was stunned for a moment, and then a chill swept through his body.

"You... You're saying that the pi of our planet is wrong?"

"I didn't say that, and I won't get an answer if I ask. Each civilization is on its own, and cannot get, help from any other civilization. ”

"But ......"

Chen Yi wanted to ask again, but Bai Xue's face suddenly froze, and he turned his head and looked in the direction behind him.

"How... What's wrong?"

"It's coming. ”

"What's coming?"

"Chaser......" Bai Xue took out the dagger on his waist and played a circle of knife flowers: "Here it is." ”

……

(Note: In this chapter, I would like to pay tribute to one of my favorite writers, Liu Yang.) ）