A person's life is short, but a population of life can last forever.

Recording information in a fragment of an organism's genes is unimaginable.

"These base sequences should be written down artificially, and there should be nothing wrong with them." Fang Yuan used his ability to observe the meteorite microbes in the glass ball, and there were waves surging in his heart.

"Aren't bases a string of molecules? How can you be sure that it was written artificially and not naturally. Niu Dazhi turned his brain and began to think seriously about this serious question.

"Ignorance really limits your imagination." Eve shook her head and sighed, an expression of hatred that could not be made of steel.

"I'm thinking about things seriously, can you not affect my thinking?" Niu Dazhi glared at her with bull eyes.

"Let me ask you, how many Chinese characters are there?" Eve shifted gears and began to get to the point.

Niu Dazhi shook his head and replied with a natural expression: "Who would remember this thing if they have nothing to do." ”

"I will, my Chinese teacher used to teach, you have been a native Chinese since you were a child, and you didn't know it." Eve glared with an annoyed expression.

"No normal person can know." Niu Dazhi got on the bar with her.

"Tell him." Eve began to pull Han Youwei to help.

"Cihai contains 14,872 Chinese characters, Kangxi Dictionary contains 47,035 Chinese characters, and our commonly used Xinhua Dictionary contains 8,500 Chinese characters." Han Youwei reported a series of data.

Eve glared at Niu Dazhi with a very proud look.

Niu Dazhi waved his hand and commented directly: "She is not a normal person, she doesn't count." ”

After a while, he remembered what he had just said, and went back to it: "That's not right. Don't digress from the topic, what I was trying to say was how do you know that the bases in the gene sequence are artificially arranged? Maybe it's natural. ”

Eve twisted her face aside with a look of disdain and snorted, "Youwei, you come and tell him that I don't want to talk to this guy." ”

"You say it yourself, why do you keep asking me to say it." Han Youwei muttered.

Eve was under the table, tugging Han Youwei's fingers with her hand, and whispered, "You say, you say, you say quickly." ”

Han Youwei shook her head helplessly, organized the language, and began to explain: "Okay. According to my understanding, if the DNA sequence is used as an encoding to record information, then it should be a kind of quadruple encoding.

"Our computers use binary encoding, and mathematically speaking, quadruple encoding can record twice as much information as binary.

"Binary requires four digits to record information, and quadruple only requires two digits to complete.

"The two-fold gap is actually not that big, so if the information is recorded with the genetic sequence of the organism, then the coding method used should not make much difference.

"Meteorite civilization, let's call this civilization that records information in the genetic sequence of microorganisms for the time being a meteorite civilization.

"The meteorite civilization certainly does not use Chinese characters, but no matter what kind of writing is used, the role of expressing emotions and thoughts will not change.

In other words, the meteorite civilization wrote their language in the genetic sequence of microorganisms with a quaternary code, so we can make some speculations about the text code of the meteorite civilization through our language characteristics.

"Everyone knows computers, and you should know that a Chinese character occupies two bytes. And a byte, when replaced by binary encoding, is actually 8 digits.

In other words, in our computer coding, a Chinese character needs 16 binary digits to be represented.

"We have tens of thousands of Chinese characters, but in fact, 1,000 commonly used characters cover 92% of the written materials, and the remaining tens of thousands of rare characters are rarely used.

"These rare words are not usually used, but they must be given a place in the code.

As a result, these encodings for rare words rarely appear, and the commonly used 1,000 words are repeated.

"I don't know what the writing of the meteorite civilization is like, but the writing and the language should have similar characteristics.

"These features will affect the arrangement of the base code, and when some coding fragments are repeated, they are in line with the characteristics of the text code, which may be the text left by the meteorite civilization."

Niu Dazhi was stunned for a moment: "Why do I know every word you say, but I can't understand it at all." ”

"If you don't understand, it's enough for you to feel like it sounds powerful." Eve was happy with that.

Niu Dazhi didn't seem to be able to find a reason to refute, so he leaned next to Fang Yuan and asked, "Do you see what the meteorite civilization left behind?" What did they say? ”

Fang Yuan was a little speechless, put down the glass ball in his hand, and said, "If I know what the meteorite civilization left behind after a few glances, it must be that the meteorite civilization has crossed over."

"Even if this thing knows that it is a written message left by a meteorite civilization, it needs to be deciphered by a supercomputer."

……

When they returned to the East China Sea, it was already the middle of the night.

Originally, I wanted to go straight to the biological research institute and report the fact that there was written information hidden in the genes of meteorite microorganisms.

However, no one at the Biological Research Institute went to work in the middle of the night, so they had to go home.

When I got home, it was already ten o'clock in the evening.

Fang Xiaozhu had already been driven back to sleep.

Fang Zhenguo was still watching TV in the living room, and the sound of the TV was very quiet.

"I'm back, the kitchen left you food, do you want to eat?" Fang Zhenguo asked without replying, his eyes kept staring at the TV.

"I came back after eating." Fang Yuan changed into slippers and lay down on the sofa next to him. Stretch.

"What did you say about tonight's briefing?" Fang Zhenguo turned his head and asked.

"The main thing is to talk about the crisis facing the earth and the challenges faced by mankind, and the purpose is to motivate students to study hard, make progress every day, protect the earth, and strive for the future of mankind." Fang Yuan replied.

"Is there a catch?" Fang Zhenguo continued to ask.

"Okay."

Fang Yuan replied, was quiet for a while, suddenly sat up straight, and said, "Old Fang, don't say that I don't take care of you, I have a shocking discovery, why don't I report it to you." Let you have a chance to make meritorious contributions, otherwise my military rank will surpass you in two days, how embarrassing. ”

When Fang Zhenguo heard this, his face suddenly darkened, and he said solemnly: "If there is a major matter to report, follow the formal procedure, be serious!" ”

+20 rage.

"The genetic sequence of the meteorite microorganism hides the text information left by that civilization, after that, I will go to the Biological Research Institute tomorrow, and you can report it to the headquarters. I went to bed first. After Fang Yuan finished speaking, he got up, yawned and walked to the room.

After hearing this, Fang Zhenguo's eyes suddenly widened, he was stunned for three seconds, and then quickly jumped up, put on the coat of the military uniform, and walked out quickly.