Muzi's voice is very soft, very gentle, with the brilliance of motherhood, in the darkest time of the Blue Star World, the voice from Muzi can give Chen Nuo and the people in the community the greatest sense of security.

"Muzi?" Chen Nuo felt that his nose was a little sour, and his eyes were moist all of a sudden.

In the early hours of the morning, the weather is a little cool, and the sea is still so calm, only occasionally there are a few waves.

Chen Nuo was already excited, miracle! A real miracle.

Chen Nuo had already prepared for the worst, but he didn't expect that just when he was about to give up, he heard Muzi's voice.

Muzi said: "There were some small problems when the satellite was launched, and now it has been adjusted. Chen Nuo, can you hear me? ”

Chen Nuo pinched his somewhat sour nose and said, "I can hear it, the signal is very good." ”

Mu Zi also breathed a sigh of relief and said, "It seems that it has been successful." ”

Chen Nuo and Mu Zi talked happily, and for the first time, he felt that the Blue Star World was so close to him.

Mu Zi sighed softly and said, "Are you still in touch with Luo Miao now?" Because of the fear of failure, so ...... What I told Luo Miao was that I would contact you tomorrow. ”

Chen Nuo found a reef and sat down, the time had come to half past two in the morning, and he didn't feel sleepy at all.

Blue Star World is his second hometown, and now I feel like I was in contact with Muzi when I was just in college, calling home in the dormitory of Jiangcheng University, which is very kind and makes people feel a sense of security.

Chen Nuo breathed the breath of the ocean and said, "No need, I'll contact her again tomorrow morning." ”

The excitement and excitement slowly subsided.

Chen Nuo sat on the reef, and neither he nor Muzi spoke.

Chen Nuo could hear the rustle of the wind blowing through the trees on the side of the Blue Star World Skynet. Muzi could also clearly hear the sound of the sea breeze on the blue island.

"Earth......" Mu Zi muttered, "the people there must be very happy now." ”

Chen Nuo chuckled and said, "Most of them are like this. ”

Muzi: "Blue Star in the early years was the same. ”

Chen Nuo asked, "Muzi, do you say that the Blue Star World and the Earth are in the same universe?" If so, where? ”

Muzi said with certainty: "Since we can communicate now, then the Earth and the Blue Star World must be in the same universe. ”

Mu Zi's answer made Chen Nuo have mixed feelings in his heart.

The good thing is that at least two planets are in the same universe and are real.

The anxiety is whether the extraterrestrial life that invaded the Blue Star World will also come to Earth one day?

Chen Nuo asked again, "Where is the Blue Star?" ”

Instead of answering Chen Nuo's question, Muzi asked, "Are the theory of relativity and quantum mechanics (Note 1) contradictory?" ”

The theory of relativity establishes the foundation of the classical system of physics, and quantum mechanics is a branch of modern physics.

There are many contradictions between the two, from the beginning of the century debate between Einstein and Podolsky, to the present day, and the proponents of both views are still arguing.

There are indeed many contradictions between the two.

General relativity is infinitely divisible, and quantum theory is discontinuous and has minimal units.

General relativity can be extrapolated from state A to state B: if you throw a ball, you must know where the trajectory of the ball will fall as long as you know the initial conditions (such as initial force, direction, mass of the sphere, gravitational force, air resistance, etc.).

Quantum theory from state A to state B is unpredictable and random, as in the famous Schrödinger's meow (which Einstein hated the most).

General relativity holds that gravity is caused by the curvature of space, but it cannot geometry the other three forces (Note 2).

In the 21st century, many theories of quantum mechanics have been applied to practice, such as quantum entanglement experiments and derived quantum communication, etc., but people with different positions still express their opinions, after all, the quantum mechanics society subverts the temple of traditional mechanics, and those who support quantum mechanics cannot refute the theory of relativity.

Chen Nuo did not answer this question, after all, professional physicists could not answer this question clearly for a while.

Without waiting for Chen Nuo to answer, Muzi said: "The beings who live in a two-dimensional state, they have their own rules of physics, they know length and width, they think they understand the whole universe, they can't understand the height, they can't understand the three-dimensional shadow projected on their plane space.

Suddenly, one day, a sage in the two-dimensional space found that a shadow suddenly appeared in his world (the shadow of a tree, people in the two-dimensional world do not know the existence of trees), and through continuous research, he found that this shadow must be the manifestation of something outside his world in this world, and he exclaimed and announced the news.

But the beings in the two-dimensional space cannot explain the shadows by their existing physical rules, they can only see the projection of the three-dimensional object on the plane, and find that the projection is sometimes large, sometimes small, sometimes in the east, sometimes in the west, and irregular. The sage could not describe the laws of projection in terms of length and width, and then this projection and the physical theory of the two-dimensional world became a refutation. ”

Muzi said: "People in the two-dimensional world never know that if they are placed in the three-dimensional world, length, width, and height are a unified description of the existence of things. ”

The story told by Muzi is actually an allegorical to human beings.

"Humans live in a three-dimensional space (Note 3), and they also have physical rules that are adapted to three-dimensional space, and they think they understand the entire universe, and suddenly one day quantum mechanics appears.

Quantum mechanics became inscrutable, inexplicable by the theory of relativity, and was considered random by scientists, and Einstein angrily said, 'God never throws a sieve.' If we put it in a higher dimensional space, quantum mechanics is the same as the theory of relativity is a basic law that describes things, but three-dimensional human beings can only observe and use it, but cannot grasp the principle. ”

Mu Zi smiled: "Chen Nuo, you are a smart person. The universe actually has rules, and everything was predestined at the beginning of the Big Bang. Both quantum mechanics and relativity were unified at the beginning of the Big Bang. At that time, time, space, matter, energy, and so on were all integrated into a whole, all dimensions were together, quantum mechanics and relativity could be reduced to one theory, and the four forces in the universe could be completely unified with one explanation. ”

Mu Zi told Chen Nuo about the physics that had been thoroughly studied in the Blue Star World.

(Note 1: The Blue Star World has the same theory, but the academic names are different, and the name of the Earth is used for the sake of unification, and the galaxy where the Blue Star World is located is called the Solar System.) ）

(Note 2: The four fundamental forces of the universe are strong nuclear force, weak nuclear force, electromagnetic force and gravitational force.) ）

(Note 3: Human beings can only advance with the passage of time, cannot change, time can only be referred to as space-time and space, and cannot be counted as one-dimensional alone.)

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