you come from the sky

can be verified.

"Can you verify it?" Fang Haochen asked.

"It's just a small idea." Bian Yu said, "Didn't you say that a large amount of gamma rays were released in that explosion 20 years ago."

Fang Haochen immediately understood what Bian Yu was going to say: "The gamma rays that time were the gamma ray bursts formed when black holes formed!"

In the past, they imagined many possibilities of gamma rays, but no one thought that there would be an ultra-small black hole here, which is beyond common sense.

Bian Yu nodded: "The escape velocity of the Schwarzschild radius is set to the speed of light, and the accretion disk outside the radius will radiate a large amount of gamma rays. We don't need to speculate on the past through the existing energy situation, we can directly detect the current Gamma-ray burst. Is there a gamma-ray detection device here?"

"There should be." Fang Haochen nodded, "Although the information on the old base is gone, the detection devices are still there. Let's look for it, and we will definitely find it!"

Bian Yu also responded, because the research building of the old base was not big, the two agreed to search separately and regroup here an hour later.

Even so, Bian Yu knew that it would not take an hour at all. After all, this kind of equivalent detection device would not be like a watch, but it would have to be as big as a generation of electronic computers several stories high.He would make an agreement for an hour, just to stay away from Fang Haochen as much as possible during this hour.

So even though Bian Yu found the testing room within 10 minutes, he wandered back and forth for a long time with nothing to do, until only 10 minutes before the meeting time, Bian Yu returned to the agreed place.

However, Fang Haochen hadn't arrived yet.

Bian Yu was in a hurry.

It's been five or ten minutes and he hasn't come back. Fang Haochen must have encountered some danger, right?Or did the body temperature rise again, where did he faint again?

Bian Yu gritted his teeth, still worried, but just when he was about to find someone, Fang Haochen finally appeared in front of him.When he came back, he was holding a bottle wrapped in oiled paper in his hand. "Look." Hao Chen said to Bian Yu from afar, "I found this."

It turned out to be a bottle of red wine.

Bian Yu breathed a sigh of relief: "Why is there red wine here?"

"It must belong to the old dean." Fang Haochen said, "Oh, it is Dean Cheng's master, the person who recruited my mother back then. The old dean, like you, is also a student who returned to China, and he was among the first to return to China. You can taste the taste of the old man, whether it suits you or not."

Bian Yu was even more surprised: "You want to drink with me?"

Fang Haochen blinked his eyes, and a smile bloomed on his face in an instant. That smile was not as free and unrestrained as the smiling faces Bian Yu had seen before. Fang Haochen's smile had some reserved and clumsy features unique to 201, but it was so bright and warm .

"Yes." Fang Haochen said, "I think you and I are drinking together, solving the mystery of 201 and witnessing the miracle of human science..." When he spoke, his eyes seemed to be covered with water, As if that scene really appeared in front of his eyes, "It must be an unforgettable day."

Bian Yu couldn't help laughing: "Quickly tell me what kind of monster you are, and quickly return my Director Fang."

Fang Haochen was also amused by Bian Yu, he stuffed the red wine into Bian Yu's arms, bumped him on the shoulder, and asked Bian Yu to take him to the testing equipment.

After such a long time, the lines of the old base can still be used.

Bian Yu was a little surprised, maybe God really hoped that they would be able to solve the mystery today.

When Fang Haochen was debugging the instrument, Bian Yu went to find two broken wine bottles, broke half of them, polished off the sharp edges and corners, washed them clean and used them as wine glasses for the two of them.It was getting late at this time, and the lighting lines in the research room were not as well laid as the equipment lines. As soon as the lights were turned on, there was a "crash", and they went out immediately with a huge flame.Fortunately, the power supply was unstable at that time, and there were frequent power outages. Candles were a must-have for almost every household.

So, in this uninhabited old mountain, in this ruins that no one has stepped on for decades, Bian Yu and Fang Haochen tasted the best red wine with the bottom of a broken bottle, and the flickering candlelight hit their faces On the next day, the "tick" sound of a series of instruments and the "squeak" sound of the pinhole printer pulling the magnetic strip rang in my ears.

At this moment, Bian Yu felt a little forgetful.He couldn't help fantasizing, and couldn't help asking: "Hao Chen, have you ever thought about the future?"

Fang Haochen was a little puzzled: "After what?" He took a sip of the red wine, and squinted his eyes for a long time because he was not used to the strong taste.

"After solving the puzzle of 201, after leaving 201."

"Leave?" Fang Haochen looked at the white moon slowly rising outside the window, "I probably won't leave. Stay in 201 until I retire." He didn't know what to think of, and said, "If you leave, Probably going to a research facility to do research, like my mother did. It’s the same everywhere for her, and it’s the same for me everywhere.”

When Fang Haochen said this, his eyes looked at Bian Yu inexplicably. He seemed to want to say something, but his Adam's apple rolled twice, and in the end he just looked away and took another sip of his wine.

Bian Yu couldn't describe what this silence was like, it was eager but also ambiguous, pulling his precarious calmness.

Bian Yu put down the "wine glass", walked to the instrument, stared fixedly at the yellowed paper strips, on which the needle made rows of black marks, and the rows of black marks resembled a Qiqi looked up at him with empty eyes.He was so focused, as if this would calm the throbbing in his heart a little.

Suddenly, Bian Yu gasped.

He turned his head to look at Fang Haochen, his eyes were full of horror.

"I don't know...it shouldn't be..."

He paced back and forth, muttering again, looking at what happened on the tape that recorded gamma rays, it made Bian Yu shudder.

Finally, the rain stopped. He looked at Fang Haochen and wiped the cold sweat off his brow: "I don't know if it's my illusion, but I think the gamma rays are regular. No... what I said Not cyclical, but kind of—”

Before Bian Yu finished speaking, Fang Haochen rushed over immediately. The moment he snatched the paper tape, he understood: Although it seems that the change is not obvious, if you distinguish carefully, you can see that the gamma on the paper tape The fluctuation of the rays is absolutely abnormal!It fluctuates at different intervals, high and low, this is indeed not a periodic change, it is more like...someone is talking to them!

"It's Morse code."

"How is this possible?!" Fang Haochen couldn't believe it.

But Bian Yu took out the pencil earlier than him, and recorded the long and short images on the paper tape.

Fang Haochen listened to Bian Yu's rapid breathing, listened to him muttering to himself, and watched him quickly decipher the long Morse code.

He couldn't imagine that this gamma ray was produced when the black hole exploded, and it was definitely beyond the control of human beings. Could it be that the black hole is conscious?Is the universe conscious?So what is the universe trying to tell them?Is it a friendly message from outer space, or a signal for help?

maybe……

Fang Haochen's palms were covered with sweat. He thought that the experiment was completely controlled by his mother, and the time around the black hole was eternal, so could this black hole record part of his mother's consciousness?Is there such a one-in-a-million possibility? This is the signal his mother left him...

If, if she really saw the end of time, if she really became the fish jumping out of the water, then what Bian Yu deciphered now... might be the theoretical equation of the unified field!

Fang Haochen waited anxiously.

30 second……

60 second……

2 minutes……

5 minutes……

He didn't know how long it had been, Bian Yu raised his head, and he looked at Fang Haochen fixedly, his face full of confusion.

"What's wrong? What is it?" Fang Haochen asked eagerly.

"I don't understand." Bian Yu frowned and said, "It's a poem..."

As Bian Yu spoke, he looked at Fang Haochen again, he moved his lips, and then read out——

"You may not know,

As I go to the extremes of the universe,

When night becomes the prototype of time,

I know I've come too far away..."

"But in my heart,

It's only you. "

Fang Haochen recited it unconsciously, and it merged with Bian Yu's gradually disappearing voice. "I know the poem..." he murmured.

He looked at Bian Yu, and continued to speak the poem in his memory——

"You may not know,

When the eastern sun falls,

When I become a bubble in the universe..."

But Bian Yu stared blankly at Fang Haochen, shook his head, and said, "I don't know the following sentence."

As he said that, Bian Yu showed Fang Haochen the stack of papers: "This poem ends here, there is nothing left behind, and the rest are regular electromagnetic fluctuations."

Seeing that Fang Haochen didn't answer, Bian Yu asked curiously again: "What kind of poem is this? Why have I never read it before?"

Fang Haochen paused, and said, "Of course you don't know..."

He pursed his lips tightly: "This is the poem I dreamed about in my dream, and, besides, I have never told anyone..."

"How is it possible?" Bian Yu asked in surprise.

Yeah, how is that possible?

How is this possible?

If those experiments were done by his mother, if she had reached the extreme of the universe, why did she do this?

The indifferent, unreasonable mother who devoted herself wholeheartedly to research, when she saw the truth of the world, all she thought of and wanted to leave behind was a poem.

to her only son.

She spent half of her life in painstaking effort and wisdom. What she wrote with her life and the waving aurora 20 years ago turned out to be just a poem.

A broken poem.

Fang Haochen suddenly returned to his childhood, he was like that every day, waiting at the door, looking forward to his mother's arrival.And his mother, although busy with work, is still willing to walk for several hours on the mountain road, just to be able to accompany him for 10 minutes.

He thought that she always carried some physics books, even at that time Fang Haochen couldn't understand a single word.

Thinking of his mother, every night, under the dim light, beside his bed, humming "Secret Love" to him in a low voice.

His mother loves him.

His mother wanted to hug him, with arms that probably weren't there anymore.

Fang Haochen suddenly hoped that his mother would come out of that black hole, and then he would open his arms to show her.

See, your child has grown so big that he is as obsessed with discovering the truth of the world as you are.

Look, everything is fine with your child, you can rest assured.

See, your child knows everything.

He knew all about the poem.

Knows everything his mother wants to say to him.

That is something that science cannot detect, that is something that no amount of experiments can prove, that may not belong to this universe long ago, but he knows it.

Beyond time and space.

Beyond science.

he knows.

His mother was never a heartless person.

He has never been a heartless person.

"What's wrong?" Bian Yu asked with concern.

"It's okay," Fang Haochen pulled out a smile, "I'm a little too drunk, I'm going to wash my face."

After Fang Haochen finished speaking, he quickly turned around and left the observation room without waiting for the rain.

"Wait!" Bian Yu called, but Fang Haochen completely ignored him, Bian Yu quickly put down the paper tape in his hand, and rushed out after him.

But the moment he turned the corner, Bian Yu stopped in his tracks.

In the corridor with only moonlight, in the place where the aurora was born, Fang Haochen stood there alone. He raised his head, and a snowflake made of strings flowed from the corner of his eye to his lips.

Note:

Explain a foreshadowing: Fang Haochen's dream in Chapter 17 has multiple correspondences in the full text, so I won't talk about the ones that are too obvious.Here is one of them, the snowflakes made by strings correspond to this chapter, referring to Fang Haochen's mother and the truth she grasped, but this truth refers to both the unified field theory and the emotional "someone has always loved you, you are not heartless" man of".In the dream, Bian Yu received snowflakes for Fang Haochen to see, and Bian Yu made Fang Haochen discover this truth.