Beneath Deep Space

After doing all this, Yu Yifeng could finally leave without too many regrets.

A series of words sounded in my mind:

[Because you are an experience member, you need to delete most of your memories to avoid confusion between primary and secondary worlds. 】

【deleting……】

【please wait……】

Yu Yifeng was suddenly shocked, "Why do you want to delete the memory?"

But at this time, I was in a daze, and I didn't have the ability to struggle even if I wanted to.

【……】

【Returning...】

A white light appeared in front of his eyes, and his consciousness gradually woke up.

My brain ached slightly, and I was in a semi-confused state.

Subconsciously, he walked out of the nutrition bin and put on his power armor in a daze. Everything that just happened in the "game" was like a dream that I remembered clearly, with a lot of details forgotten.

"Captain, you wake up!"

When soldier Zhao Yao saw Yu Yifeng walking out of the gate, he stepped forward in surprise and saluted.

Yu Yifeng's head was still stuck.

He waved his hand to the ceiling. Unfortunately, the ceiling did not collapse. He stared at the ground for a while, but it did not cause an earthquake.

It took a long time before I slowly accepted this fact.

After breaking away from the "God Mode", he became a normal person again. The power that came and went away when he was summoned disappeared. It really felt...unaccustomed to him.

Yu Yifeng shook his head violently.

"Captain, what's wrong?"

"It's okay, I just have a headache." Yu Yifeng said in a dry voice: "Is there any water?"

"Yes!" Zhao Yao quickly took out a 600 ml bottle of canned water from his backpack.

After Yu Yifeng took it, he put it into the groove of the power armor. With a click, a straw popped out of the helmet, and he sucked it up.

The water inside, with electrolytes and a small amount of sweetness, seemed to be the source of life, making his head gradually clear.

"Another bottle!"

This "game" made him feel like a dream, which lasted longer than he had experienced in his entire life!

It's a little hard to tell the difference between real and fake.

Fortunately, most of his memories have been deleted, otherwise he would have a high chance of splitting his personality and becoming a complete psychopath.

"This should be a protective measure."

His time as a captain was far less than his time as a God.

"Now is the reality..."

After drinking two large cans of water, Yu Yifeng's eyes became determined. Putting aside the unreasonable feeling of losing power, he asked: "How long did I sleep?"

"16 days and 8 hours." Zhao Yao replied: "The others have finished long ago. Captain, you are the last one."

"Has it been 16 days?" Yu Yifeng's heart moved, he completely suppressed this discomfort and nodded.

He followed Zhao Yao and walked quickly to the middle of the diplomatic team.

Soon, he recognized these familiar faces: Rimbaud, Chauzoux, and many other familiar faces.

This group of people are constantly discussing this bizarre encounter. In order to save time, everyone's "game" is different, and they are now in the stage of mutual communication.

Yu Yifeng also joined in. Although his memory was largely deleted, he still remembered the most important parts. Especially the last paragraph of Marginal Civilization...

"It is as powerful as a fringe civilization, but it also thinks that it is a caged bird, a frog in the well."

"They want to fly to the edge of the universe and chase the first light that created the world. Oh, how cool it is."

These words made everyone feel disappointed and fell into silence for a long time.

…

Dr. Rimbaud spoke next.

"Do you know? I was thrown into a completely normal world, and then... the system told me that this world may be false, or it may be real. Let me distinguish the true from the false!"

Dr. Rimbaud shouted: "Isn't this...a brain in a vat?" [Note 1]

"I have lived there all my life, conducted various experiments, and created various complex creations, but I have not found anything abnormal. It is completely true!"

How do you prove...that you are not a "brain in a vat"?

Yu Yifeng also expressed interest in this issue. He was also thinking about whether everything he had just experienced and the Blue Star civilization he had created was real, or was it the result of computer simulation?

"Any virtual machine has the highest computing accuracy, maximum computing speed, and maximum data storage capacity. These are its boundaries. This is my first idea. I want to find its boundaries." Dr. Rimbaud said with a smile: " But various experiments have proven that the cosmological constants in that world are exactly the same as those here... I have also thought about other methods, but they all failed. "

"So my answer is: The brain-in-a-vat problem is difficult to crack just from that dimension. If the computer forcibly modifies my memory and way of thinking to make me think it is real, how can it still be played?"

Everyone was thinking deeply, indeed.

The philosophical question of "brain in a vat" has existed for a long time, and there has never been a good answer.

Brain in a Vat does not mean to put forward a conspiracy theory to embarrass everyone. What it wants to express is the difficult problem faced by science.

Human beings cannot be sure that their perception of the world is consistent with the real world. Because humans need to understand the world indirectly through media such as the senses. What humans really understand is the reaction of the senses to the world rather than the world itself. If the senses are distorted (i.e. "cylindrical"), or it can be said that the senses themselves are media that distort information) and people will perceive the wrong world.

Some people even believe that the entire world we live in now may be false, and have also put forward some reasonable hypotheses: the slowdown of time in the theory of relativity is due to the lag caused by the decline in computing performance; the uncertainty of quantum mechanics , just to prevent people from exploring the truth of the world; Planck length and time cannot be subdivided infinitely, which limits the maximum computing power required...

Okay, these are weird questions, but they seem to make sense.

During the discussion, Dr. Rimbaud suddenly smiled and said: "...I think I should have cracked part of it!"

At this moment, everyone looked at him in surprise. Didn't it say that it couldn't be cracked? Why was it partially cracked?

"Just because you can't do it in that dimension doesn't mean you can't do it in another dimension."

Dr. Rimbaud made a somewhat mysterious gesture and said quietly: "...In that world, after I clarified my thoughts, I gave up the struggle to solve the problem. Since it is one of the ten major problems, it is generally impossible for there to be inexplicable problems. There are so many aliens smarter than us!”

"Well, I was also a physicist in that world. Based on the physical experiments in that world, I published several papers on particle physics! New paper."

"Hey... I still remember those experimental conclusions!"

"I have already arranged for the assistants in Noah to start relevant experiments. If some data in the physical experiments of that world and this world do not match, wouldn't this problem be solved?"

When Yu Yifeng heard this, he was also amazed and sighed at his strange brain circuit.

"interesting!"

Some people didn't understand it at first, but when they came to their senses, they applauded one after another.

"Papa!" "Papa!" The entire huge square rang out with applause from power armor, which seemed very loud.

However, Dr. Rimbaud's plan is only cracked in another dimension, which is equivalent to finding a loophole that is not a loophole, so it cannot be said to be "completely cracked."

[Note 1] Brain in a vat: "A person (you can assume it is yourself) was operated on by an evil scientist. His brain was cut off from the body and placed in a vat containing a nutrient solution to keep the brain alive. .

The nerve endings of the brain are connected to a computer, and the computer transmits information to the brain according to the program, so that he can maintain the illusion that everything is completely normal. For him, it seems that people, objects, and the sky still exist, and his own movements and body sensations can all be input. This brain can also have memories input or intercepted (the memory of brain surgery is intercepted, and then the various environments and daily life he may have experienced are input). He can even be entered into a code and 'feel' that he is here reading an interesting and absurd text. "

The basic question about this scenario is: "How can you guarantee that you are not in this predicament?"

(There are many derivatives of this experiment, so I won’t go into details here.)