Age of Cataclysm: I can light up the technology tree

Earth.

Qinghai-Tibet Plateau, Human Union First Laboratory, Main Laboratory.

Lv Yongchang stared at the holographic image in front of him in a daze, swallowing slightly.

"...Zero, what did you say?"

"Signal from Proxima? Are you sure?!"

Lv Yongchang was confused.

How could this happen? !

In the last life, there was no signal from Proxima!

Is the butterfly effect really that powerful? !

"Yes." Zero said in a very sure tone, "Because of the transmission distance, the signal seems a bit messy, but I can be sure that this is information transmitted by intelligent creatures!"

Hearing this, Lv Yongchang's face changed slightly.

He understood!

In the last life, perhaps Proxima also sent a signal!

It's just that the signal was too messy, and humans had just discovered the solar anomaly at that time, and the world was in turmoil, so no one noticed the signal!

Lv Yongchang looked at the signal frequency band in front of him with a gloomy expression.

"Zero!"

"Notify the chairman of the council immediately and convene a meeting of the People's Union."

"Also, let all working radio telescopes face Proxima Centauri and keep a close eye on their movements!"

...

In the meeting room.

The chairman of the council and a council member sat in their seats with solemn expressions, silently looking at Lv Yongchang standing in front of them.

"Yongchang, is the situation reported by Zero true?"

Seeing that everyone was present, Councillor Li asked in a low voice with some worry in his eyes.

Lv Yongchang nodded silently.

Then, he turned around and waved to the holographic projector beside him.

A holographic image appeared in front of him.

"This is the signal received by the Sky Eye system."

"At present, there may be some confusion." Lv Yongchang said in a deep voice, "Zero, process the data."

The moment the order was issued, the chaotic signal band instantly became regular.

Looking at the waveforms that fluctuated back and forth in front of him, there was a dead silence in the meeting room.

Albert, who was sitting next to him, reached out and scratched his golden hair, and said in fluent Chinese: "What does this signal contain?"

"It can't be just an ordinary electromagnetic wave signal, right?"

Lv Yongchang glanced at Albert and said calmly: "That's exactly what I want to say."

"At present, the content of this signal is very simple."

As Lv Yongchang's voice fell, a string of numbers appeared in front of everyone.

2 3 5 7 11 13 17 19 23 2 3 5 7 11 13 17 19 23

"This is the signal change law obtained by zero statistics."

"Prime number sequence?" The emperor frowned slightly and asked in a low voice.

Lv Yongchang raised his eyebrows slightly and looked at the emperor with surprise.

"Yes, it is indeed a prime number sequence."

"From 2 to 23, the sequence has been cycled 30 times so far, and each cycle takes 1 minute."

"I don't understand." Albert pulled his golden hair hard, his eyes full of confusion, "Why would Proxima Centauri put such a boring string of data?"

Like Albert, many congressmen also had some doubts in their eyes.

"I think this should be screening the audience." Lu Yongchang replied softly, "or rather, choosing the audience."

"How should two civilizations communicate? This is a very romantic question."

"Two civilizations with different cultures, different technologies, and different species cannot communicate normally simply by relying on language or patterns." Lu Yongchang took a deep breath, "In the entire visible universe, at least, in our cognitive system, mathematics and physical laws are the only tools."

"The prime number series plus electromagnetic wave communication can at least filter out those civilizations that have not developed modern technology."

"Considering what was found on the moon, I can be sure that this string of signals from Proxima Centauri must be directed at us."

As soon as the voice fell, countless questions rang out.

"Moon? What was found on the moon?"

"What are you looking at me for? The United States didn't find any messy things when it landed on the moon before!"

"..."

Member Li frowned and coughed lightly.

"Cough cough!"

"Zero, unlock that file."

The next moment, a series of small holographic images appeared in front of each member of the parliament.

"Everyone, let me explain." Councillor Li picked up the microphone and said in a deep voice, "This is the trace found when Xiaguo first landed on the moon."

"According to our calculations, this burning mark should come from a more advanced Hall thruster, and the destination of this UFO is Proxima Centauri."

After a short silence, exclamations rang out in the conference room!

"Fuck..." This is the national quintessence shouted by Councillor Albert.

"Oh my God!!" This is the exclamation of the emperor.

Although he knew that the occasion was not right, looking at the scene in front of him, Lu Yongchang still showed a little smile in his eyes.

It seems that the cultural unification plan of the councillor has been implemented well.

"What do they want to do!" Albert was shocked and angry.

This reaction is also normal.

No matter who it is, when they know that there is a civilization secretly observing humans, they will react like this.

"Professor, the second message has arrived."

Just when Lv Yongchang was about to answer, Zero's virtual image suddenly appeared above the conference table.

"What's the content?!" Lv Yongchang asked solemnly.

The originally noisy conference room also quieted down in an instant!

"There's a lot of information." Zero's virtual image frowned anthropomorphically, "But they attached a dictionary in it."

"Dictionary?" Lv Yongchang asked back in confusion.

"Yes, in my opinion, this is a dictionary." Zero answered quickly.

At the same time, the holographic projection screen changed quietly.

On the left side of the holographic projection, there were pieces of strange and bizarre text.

On the right side, there were some simple patterns.

"So that's it..." Lv Yongchang's eyes showed a bit of obsession.

Everyone looked at the chief scientist of the Human Union who was deeply involved in it with confusion.

"This..." Albert and the emperor looked at each other and shrugged helplessly.

Even Councillor Li was full of confusion and doubts on his face.

"Yongchang?" Finally, Councillor Li couldn't help asking, "What does this mean?"

Hearing Councillor Li's call, Lu Yongchang came back to his senses.

He glanced at the "dictionary" in front of him with lingering thoughts, smacked his lips and explained.

"Look."

"This part of the pattern on the right."

"This is a cesium-133 atom."

"And this pattern represents the process of the cesium-133 atom transitioning between its two hyperfine energy levels in its ground state."

"As for what it means..."

"One second is the duration of 9192631770 cycles of radiation when the cesium-133 atom transitions between its two hyperfine energy levels in its ground state, so the corresponding text on the left is the meaning of one second and the cesium-133 atom."

"Similarly, 1 meter is the distance that light travels in a vacuum in 1/299792458 seconds."

"By analogy, through this dictionary, we can recognize their words bit by bit and understand the content of their information."