Hearing Yang Dongqing's question, the fairy did not answer immediately, but looked at the sea and was stunned for a moment, as if she was recalling something.

After a long time, the fairy sighed and said, "That's because of the development of science and technology...... It's so hard!"

"What?" Yang Dongqing didn't understand, what does the mechanical race have to do with the development of science and technology to absorb life.

The fairy looked at the sea, as if talking to herself, and said in a low voice: "After the initial rapid development, the more difficult it becomes, the more difficult it becomes, and often it cannot take a step forward for hundreds of years, but can only develop horizontally. You should know that quantum mechanics and general relativity are the theoretical foundations that you have been using until now. ”

Speaking of this, the fairy turned her head and glanced at Yang Dongqing, and continued: "This problem is not only for humans, but also for any race, and the mechanical race is no exception. But new materials, super-distance communications, faster-than-light, completely new weapons...... It takes a higher level of science and technology to achieve it. ”

Yang Dongqing was still stunned, he knew what the fairy said, but he had never studied it, his mind was on martial arts. I don't know what this has to do with the mechanics absorbing life.

"Still don't understand?" asked the fairy.

"Well, I don't understand!" replied Yang Dongqing very honestly.

"I ask you, how do you think the speed of light is reached?" asked the fairy.

Yang Dongqing didn't answer immediately, but fell into thought. He had such a question before, but there was no answer. In the First Battle of the Sin Star back then, due to the emergence of too many things far beyond Yuhe Technology, Professor Li Hansen's belief collapsed.

"It should ...... It's super energy!" Yang Dongqing replied, thinking of the water droplet's mass-energy conversion device.

The fairy asked again, "Do you know what energy is?"

"This ......" Yang Dongqing thought about it carefully, and it was really difficult to explain what energy was.

"If we look at it according to the mass-energy equation, mass is energy, that is, mass and energy are one and inseparable. This is also the reason why it is difficult to reach the speed of light, because the closer you get to the speed of light, the more mass the object will move, and the energy required will continue to increase...... And a photon that can reach the speed of light has zero mass...... Therefore, without a curvature engine, it is difficult to reach the speed of light, no matter how large the energy is. ”

Yang Dongqing suddenly showed a sudden look, the martial artist has reached the seventh level, and the speed of flight can exceed the speed of light, because of pure energy. Pure energy, completely abandoning the mass of matter, is able to reach the speed of light.

"Understood?" asked the fairy.

"Understood...... However, how did the pure energy come from?" Yang Dongqing had a similar idea before.

The fairy replied, "It's your mind, your mind! Think about it, since you have been promoted to the fifth level, your qi vein, your void pill, and now the force field in the cell, which one has no mind to participate? It is precisely because of the mind that there is the pure energy of the sixth level. ”

Yang Dongqing asked again, "What is that idea?"

The fairy smiled: "Your question is equivalent to asking who am I? no one can answer...... It is also the answer that our warriors ultimately pursue. ”

Yang Dongqing thought about it, and the more he thought about it, the more confused he felt. What is the idea, who am I, where do I come from......

"Smack!" Yang Dongqing received a fairy slap on the head, and he woke up suddenly.

"Don't think too much about this kind of problem, the higher your cultivation, the easier it is to get lost. The fairy said with a straight face.

"Oh oh!" Yang Dongqing hurriedly nodded, the fairy was so solemn, it was not a joke.

The fairy continued: "Remember when I told you that practicing martial arts is practicing control?"

"Remember!" Yang Dongqing never forgot that every time he practiced, the fairy would instill this idea in him.

"The so-called training of martial arts and control is about exercising the mind. The deeper your mind's control over your body, the greater your control over your energy, and the higher your cultivation strength......" Speaking of this, the fairy's words changed and asked, "The role of your mind is so important, you should know that it can extract pure energy and absorb other life purposes of the mechanical race, right?"

"I see!" Yang Dongqing realized that the mechanical race absorbed the life race for the sake of ideas.

"Pure energy is extracted through the mind, and through pure energy that can be controlled, more in-depth research can be done. That's what the mechs of the mechs are for. I remember you had a blue hedron too, right?"

"Hmm!" Yang Dongqing still remembers that when he first got the spar, he always felt that a voice was bewitching him.

"The energy defense of the war fortress, as well as the defense of the core of Noah's spaceship, is it also the reason for the idea?" Yang Dongqing asked again.

The fairy waved her hand and said, "Noah's spacecraft uses space technology, and the ability to defend the power of the war fortress is another way...... As for which one, you'll find out later. ”

As soon as Yang Dongqing heard the fairy's meaning, he knew that she didn't want to tell herself, originally he wanted to use this topic to see if he could ask something about the relationship between the war fortress and space, but now he couldn't continue. As long as the fairy doesn't want to tell him, she won't say it.

"By the way, why can I still feel the passage of time when I am traveling faster than the speed of light?" Yang Dongqing then found another topic.

"I won't explain this question to you first, when you have successfully realized the higher dimension, you will naturally understand. The fairy still did not answer.

"What is the higher dimension?" Yang Dongqing immediately asked.

The fairy said: "Actually, your sixth sense has already touched the edge of a higher dimension. ”

Yang Dongqing thought about it and said, "The sixth sense, the feeling of danger, the prediction ....... is time?"

That's pretty much it, but not quite. The real high-dimensional space-time, where you can see countless possibilities for your past and future, is already able to involve cause and effect. ”

Yang Dongqing was dumbfounded when he heard this, the fairy's words were completely beyond his current cognition.

"Don't think too much about it now, you're still far from that realm. Even your sixth sense will make mistakes when you meet a martial artist with a higher cultivation level than you. The fairy reminded.

"Yes!" Yang Dongqing came back to his senses and nodded in response.

"This time you are taking too big a step, so keep a good attitude. The fairy stood up, she had just deliberately said the high-dimensional space-time and cause and effect, just to let Yang Dongqing know that she was still far away.

"Okay, if there's anything you don't understand, I'll talk about it slowly later. There's a lot of time in the future, so let's start practicing now. The fairy patted Yang Dongqing's shoulder and stepped aside.

Yang Dongqing originally wanted to talk for a while, but the fairy said that she wanted to practice, so he didn't dare to delay, so he hurriedly got up and put on a Taijiquan starting stand.

The fairy raised her hand to interrupt and said, "If you don't practice these today, I'll teach you new exercises!"