The academic exchange conference was held in the conference hall of a five-star hotel in City C, and well-known domestic physicists came to participate in the academic conference, the main content of which was to discuss some key and cutting-edge issues in electromagnetism, relativity and quantum mechanics. In addition to Professor Wu Yining, Professor Yang Shimo also attended the academic conference.

The conference hall is spacious and bright, with state-of-the-art projection equipment and wide screens, like curtains in a movie theater. In the front left of the screen is a lectern with flowers stacked on top of it, and that's where the presenter gives his presentation. The conference hall is stepped in shape, low in the front and high in the back, and the front and rear rows can be clearly seen on the screen. Fruits, pastries, and drinks are displayed outside the meeting room, which can be eaten by participants during a break.

Wu Yining is engaged in electromagnetic research, his academic report is decent, the research methods and means are relatively mature, nothing more than its test data is more accurate than its predecessors, and the innovation point is not particularly prominent. The experts did not raise any special questions about Professor Wu Yining's report, nor did they show strong interest, but Professor Yang Shimo's academic report caused a fierce response.

Although Professor Yang Shimo has retired from U-City Polytechnic University, he has been engaged in the research of quantum mechanics experiments. The title of his academic report is "The Role of Human Consciousness in Quantum Mechanics". Most of the physicists attending the conference were materialists, and they knew about the topic of Professor Yang Shimo's report for a long time. They had threatened to refuse to attend the conference and collectively opposed Professor Yang Shimo's participation in the academic conference. On the grounds of "academic freedom and inclusiveness", the organizer resisted the pressure and invited Professor Yang Shimo to give a report.

In the process of academic exchange, the speaker first makes a report with the help of PPT, and then answers questions after the lecture. In general, the audience will not interrupt during the narration, otherwise it will be disrespectful to the presenter. Several physicists who opposed Professor Yang Shimo were ready to refute his absurd views at any time in the course of his narration, which embarrassed him and made him retreat.

Professor Yang Shimo spoke to the participating experts in a loud and energetic voice: "Since I read the popular science works on quantum mechanics when I was in high school, I have developed a strong interest in quantum mechanics and have studied it for decades. Now I would like to share with you the latest understanding in the field of quantum mechanics in recent years. Many experiments in quantum mechanics tell us that consciousness plays a very important role in this. Human consciousness is not only inseparable from the objective world, but may also be the most basic thing in the theory of natural science, and the objective material world is the result of the action of consciousness, and people cannot exclude consciousness from scientific research......"

When a professor heard this, he looked very contemptuous and disdainful. He interrupted Professor Yang Shimo's report and said, "Professor Yang, I really can't agree with your point of view. As we all know, the whole world is a material world that objectively exists without relying on human consciousness, and the original nature of the world is matter. Matter determines consciousness, and consciousness is a reflection of matter. You point out here that the objective material world is the result of the action of consciousness, which is very wrong......"

"Professor, I'm here to analyze the role of consciousness from the perspective of quantum mechanical experiments, not from a philosophical point of view." Professor Yang then reviewed the strange superposition states and wave function collapse, Schrödinger cat, quantum entanglement and other phenomena in quantum mechanics, and finally concluded that matter is produced by measurement, and without measurement there is no matter. The core of physical measurement is human consciousness, and consciousness is a quantum physical phenomenon.

"According to you, if I don't look at the moon in the sky, I can assume that the moon in the sky doesn't exist?" The professor continued.

"From the point of view of quantum mechanics, so to speak. In quantum physics, matter can be described by the Schrödinger equation. Taking the electron double-slit experiment as an example, the electron is a probability wave described by the Schrödinger equation, there is no definite state of motion, once it is observed, that is, once the human consciousness participates in the test, the wave function of the electron begins to collapse, and the electron will appear in a certain position, and some kind of objective reality will appear, so the objective reality arises from the participation and measurement of consciousness - at least, consciousness will interact with matter. Professor Yang replied.

"According to your point of view, human thoughts are very similar to the measurement of quantum mechanics, consciousness is empty when it is not measured, there is no delusional distraction, looking at flowers is not flowers, looking at the moon is not the moon? Once your idea is generated, you measure it, the flower and the moon are fixed in one form and jump out, and you think it is the flower and the moon? The professor asked.

"That's right. When the mind is moving, consciousness itself is no longer free, it suddenly collapses to concrete concepts, and matter can have a definite state. Professor Yang further explained.

"Professor Yang, you are giving a report here, and if there is a person outside the conference room who is passing by and he does not come in to see you, then may I ask if you are in the conference room at this time? Or do you exist at this time, Professor Yang? The second professor asked Professor Yang.

"In this case, there is no certainty for me. I can be in a conference room or anywhere in the universe. Professor Yang replied.

"However, according to my existing awareness, whether the people outside the conference room look at you or not, you are in the conference room at this time. It is impossible that you are both present and absent at this time. The second professor said.

"It's because your consciousness is involved in the measurement that you know I'm here. Otherwise, I also have no definite status for you. Professor Yang replied.

"Ridiculous, ridiculous! Funny, really funny! You can say the same about electrons in the microscopic world. The same cannot be said about objects in the macrocosm! Regardless of whether anyone comes to see you or not, Professor Yang, you are always in the conference room, and this is not subject to the consciousness of others! The second professor said.

"This professor, we can also understand it this way. In the electron double-slit experiment, you don't observe it, it may pass through the left slit or through the right peak, the probability of each is 50%, after you observe, the electron randomly chooses a slit to pass through, so the observer's consciousness can affect the matter; Similarly, if others are not observing me, I may be in the conference room, or I may be outside the conference room, but the probability that I am in the conference room is 99.9999999%, and after others observe me, I will choose a definite state to appear - but the probability of me appearing in the conference room is extremely high, but I may also appear outside the conference room with a very low probability of 0.0000001%, both of which can be described by the Schrödinger equation. So, the observer's consciousness can also affect my existence - for example, after the observer observes me, maybe the probability of me appearing outside the conference room becomes 0.0000008%! Professor Yang said.

"Professor Yang, when the probability of electrons passing through the left and right slits is 50%, you can say that the observer's consciousness will affect the existence of electrons; But when the probability that you are in the conference room is 99.99999999%, the consciousness of the observer will not affect your existence, and the objective reality of you in the conference room will not be transferred by the consciousness of the observer. Well, your previous argument that matter is produced by measurement is untenable. The third professor continued to discuss with Professor Yang.

"It seems to me that the consciousness of the observer can likewise influence the existence of macroscopic objects. The probability of me appearing inside the conference room is 99.99999999%, which does not seem to be subject to human consciousness, but consciousness may change the probability of me appearing outside the conference room from 0.0000001% to 0.0000005% or 0.0000008%! Taking me as an example, suppose my current GPS coordinates are (x,y,z), and the value of x is accurate to 15 decimal places, now I ask: am I on the left side of x? Or to the right of the x? Your consciousness is not observing me, and I may be either to the left of x or to the right of x, with a 50% probability each. When you observe me, I choose a random location to settle down. So, your consciousness can also determine my existence. Professor Yang said.

A person is in the living room of the house, and suddenly he appears on the moon, or somewhere in the distant universe, according to the point of view of quantum mechanics, this is not an incredible thing, they all have the probability of happening. In Professor Yang's view, the participation of human consciousness ultimately determines the emergence of one of the material states, so fundamentally speaking, consciousness determines the direction of material changes, and consciousness is a more primitive existence than matter. The third professor pondered for a moment and asked, "What is the nature of consciousness?" Where does consciousness come from? ”

"Each of us is a bunch of atoms made of particles, about 6×10^27 atoms in total. Atoms form molecules through covalent bonds, and molecules come together to form molecular aggregates, then cells, tissues, organs, and finally a complete person. No matter how much research you do, you can't explain human consciousness, which is beyond what we can say and perceive. To explain consciousness, we must go to the level of quantum mechanics. Therefore, I believe that the origin of human consciousness lies in the fact that electrons, photons, and other elementary particles are conscious, which is quantum consciousness, and everything is spiritual. Professor Yang replied.

"After death, people are also made up of a large number of elementary particles, and at this time, are the dead still conscious?" The third professor continued to ask.

"Perhaps, probably people's consciousness at this time exists in the form of ghosts." Professor Yang said in a slurred. He couldn't seem to believe himself anymore.

"So you mean to say that there are ghosts in the world? What evidence do you have? ”

"I have observed the existence of ghosts in quantum experiments. I know a master who often catches ghosts, which means that ghosts are very likely to exist. Professor Yang became less and less confident.

"So, where do ghosts exist?" The third professor asked in pursuit.

"Ghosts exist in the fourth dimension of the supernatural space. Quantum mechanics tells us that the fourth dimension is curled up to the size of Planck's size – 10 to the 33rd power (i.e., one billionth of a millimeter) – so people can't see it. Professor Yang said.

"How can this be true? The sacred temple of academic exchange cannot allow such strange and chaotic academic views to exist! Get him out, he's not welcome here! Finally, someone in the audience couldn't take it anymore and shouted loudly.

The organizers of the conference heard Professor Yang Shimo make such ridiculous remarks and could no longer support him. Before Professor Yang's report was finished, the organizers persuaded him to leave. With so many experts in attendance, there was no one to support Professor Yang, so he sighed and left the conference room.

After the academic exchange in the morning, the participating experts had dinner together. After the eight central regulations were promulgated, they did not dare to eat and drink too much, and ate a buffet. The dishes were rich and delicious, and they were very happy to eat.

It was at this five-star hotel that in addition to the academic exchange conference on physics, a medical seminar was held. A medical expert finished his report in the morning, and was eating a buffet, when he received an emergency call from the hospital, saying that the hospital had admitted a drowning patient who was dying, and the doctors in the hospital were helpless, and asked him to go back to first aid quickly.