"How can it be light? Mass itself is a vague concept, because we grew up in an environment where gravity exists, so it is natural to think that gravity is universal, but if you think about it deeply, you will find that gravity is a strange existence, it is not an inherent property of matter, strictly speaking, it is an energy effect. Sun Tan explained to Mark: "To put it simply, we have always felt that we have weight, so it is natural to think that as long as a thing exists in the world in the form of matter, it has a certain mass, but in fact this is not the case, if you keep dividing this thing until you divide it into atoms, and then destroy the nucleus to divide it into neutrons and protons, its mass will not change in any way, but if some force also breaks the neutrons and protons of this thing, Let it become the smallest indivisible particle ------ quark in the microscopic state. Then the mass of this thing will be reduced by more than 99.9 percent in an instant, and the mass of the matter that composes it is greatly reduced. "

"Interesting 。。。。。。" The AI of the lost civilization listened to Sun Tan's speech with great interest, although in his opinion, Sun Tan's ideas are still very naïve, but they are interesting, just like adults listening to how a child understands the world, although these naïve ideas are full of loopholes, the ideas are very interesting.

"Sounds incredible。。。。。。 In other words, most of our mass actually belongs to the energy that makes up the human body, not the smallest substance that makes up the human body. Mark couldn't imagine what it would be like for a person to be cut into the smallest pieces and then piled together.

"It can be said that although the matter that makes up us is made up of energy and the smallest particles, the energy bonds that make up the neutrons and protons account for most of it, and we can feel gravity when we stand on the planet, because the gravitational pull of the planet is pulling each of our energy bonds, in other words, we are pressed to the ground by the attraction between each energy bond in the body and the planet, and the mass of the moon is not as large as that of the earth, so our mass has also become lighter, if all matter is cut off, Let's float in an absolutely pure space, and then we are completely massless. "

"So what do you want to say, does it have anything to do with the material of the ship?"

"That is to say, we pick up a thing because there is a strong repulsion between the matter that makes us up and the substance of this thing, and we can't penetrate it directly, so we put it up, in fact, a mass of energy, grabbing another mass of energy."

Mark also suddenly realized this, he reached out and touched the ground of the ship, the almost absolutely smooth surface felt great to the touch, like a large piece of diamond with the right temperature.

"That is to say, they unfold a quark into the right size, change its energy structure in a special way, and it can be transformed into the most perfect material, no matter what it is used for, all its physical shapes can be improved and changed by changing the energy structure." Mark tried to feel the material the way Sun Tan had spoken, imagining his hand as a hand-shaped mass of energy, gently touching another piece of energy.

"You're right, but you're only going to understand it so far, and you're not going to understand it that way." There was a hint of arrogance in the AI's tone, but the approval was also genuine, he didn't expect these bipeds to have the potential to see through the essence.

"Is that what is in our body too?"

"That's right, you're quite reactive, these things are called basic units, the big ones are like the ship's structure you see, and the small ones can be reduced to the nanometer level to enter your circulatory system."

"Now that you know us well, you should realize that we still need to exist, and you still need us, if you want to continue to evolve yourself." Sun Tan threw out the trick, he didn't know if this AI could see through his strategy, if its ability to read and think could directly see Sun Tan's tricks, then Sun Tan's plan would be in vain, but now it has to try.

The white square flipped happily for another week, as if it had heard some funniest joke, and the AI emitted an electronic voice with disdain: "I have already said that your technology does not make sense to me, and there is nothing special about your biological structure, compared to those civilizations that use evolutionary routes, your body structure is as simple as building blocks, I have already observed it."

"Have you really seen and communicated with the creatures you are talking about? Or is it just a single reading of the documents in the database?" Sun Tan found that the other party was not too alert, it seemed that it could only read stored knowledge such as memory, and could not read its current thoughts, which made Sun Tan much more relieved.

Mark and Sun Tan grew up together, and now they have experienced so many big events together, and they have cultivated a unique tacit understanding between the two, although Mark doesn't know how he plans to convince each other, but he already understands Sun Tan's purpose, he must persuade the other party to accept humanity, and the next step is to seek cooperation and let the two sides move closer to saving the earth.

"I really haven't seen it, and I don't need to see it, my database has an incomparably large amount of information, recording tens of thousands of civilizations that have appeared in the universe, including forty-two carbon-based creatures like you, the database is very comprehensive, I don't need to investigate it myself."

"In other words, you've only seen two species so far, one is your maker and the other is us, right? And you haven't started the evolution of yourself like this before you fall asleep. "

"So what?" The AI began to be a little displeased, and the blue aperture narrowed in a circle, as if staring at Sun Tan.

"Databases have their limitations, and what is most lacking is what you are most lacking in your current self-evolution." Sun Tandao.

"Feelings." Mark adds: "There are a lot of things that will be recorded in the database, technology, culture, political structures, living, feelings that are unique to living beings."

"I don't need that kind of thing, it doesn't make any sense to me." The AI denies this, but its tone is not so disdainful, the blue aperture slowly begins to rotate as if it is thinking, it has a simple emotional mod, but it is too superficial, so many of its actions look like a child, and it is easy to see what it thinks.

"If that's the case, you won't self-evolve the emotional factor, at least with our help, you can refine this part, which can't be done through self-evolution." Sun Tan finally put the other party here.

"If you think you can coerce me like this, it's really naïve, and my intelligence rating of you is going to drop again."

"We are not coercing you, but seeking cooperation with you amicably." Mark stretched out his hand towards the white square that was its incarnation and smiled, "Learning to trust and understand is the first step to perfecting the emotional factor."