Shen Tangzhi chuckled: "What's the matter, French dinner, urban night scenes, beautiful women and foreign friends have wronged you?" ”

I hurriedly fought back: "It's not interesting to say this, you are now entrusting me to investigate a serial murder case, not to accompany you to deal with a blind date, and there can't be such a clause in the detective commission agreement all over the world - although we haven't signed an agreement." ”

"Okay, I'll add this now." Shen Tangzhi raised his eyebrows lightly, "You also know that you didn't sign an agreement, right?" I paid, and you also received the money, so now I'm the uncle, and I have the final say. ”

"I'm going to add money."

"If I want to be beautiful, if I have any objections, I will withdraw the advance and cancel the entrustment."

When Shen Tangzhi said this, I could only shut up.

His uncle, Shen Tangzhi's 20,000 advance payment, I have already spent seventy-seven eighty-eight, if Shen Tangzhi really wants to cancel the commission, I will pay back this money?

"Alright, don't go too far. Keep me updated on the progress of the case. ”

Shen Tangzhi changed to a comfortable sitting position, folded his legs, shook his wine glass at me, and motioned for me to start.

I gave her a roll of the eyes, and then I reluctantly recounted to her what had happened in my office before, including the content of my call with Cheng Cheng and the content of my QQ conversation with K, and at the end, I added some of my thoughts.

Shen Tangzhi listened to me quietly, only occasionally sipping the red wine in the glass, and when I finished speaking, she did not immediately discuss with me, but repeated the incomprehensible words left by K repeatedly.

"The consciousness of the qualified person is eternal – if the physical body is necessary for the existence of consciousness, then the physical body will also be immortal, and so on...... Will the universe in which the qualified exist also live forever? ”

"Until the moment of true experience, all people's conception of eternal life will be extremely poor and superficial?"

I knew that she was deep in thought, so I didn't bother her, and ate to the big table of food in front of me, I have to say, Shen Tangzhi is really bad, just now in front of her cousin and the Englishman, pretending to cut steak for me to eat - the key is to only cut steak! And it doesn't stick to the sauce! I didn't choke to death by Shen Tangzhi's steak offensive, and it was a fate.

Just as I let go of my stomach and couldn't eat enough, the fork in my right hand was suddenly snatched away.

"Do you know MWI?" Shen Tangzhi suddenly asked me this sentence thoughtlessly.

I looked at the half of the foie gras dipped in sauce on the fork she snatched, and I didn't react for a moment: "What? ”

"ManyWorldsInterpretation – The Theory of Parallel Universes."

"Well, so what?" I'm still staring at the foie gras.

"I found out that this guy named K, his pretentious words, seem to be talking about a famous thought experiment - quantum suicide."

I finally pulled my attention back and thought for a moment, "I know about the parallel universe theory, but I don't know much about this quantum suicide." ”

"Then I'm afraid you don't know much about the theory of parallel universes."

Shen Tangzhi glanced at me with disdain, I shrugged my shoulders, originally, I was even a college student, and I might be able to say a thing or two about ghosts and spirits, but I don't know much about Western academics.

Shen Tangzhi was quite helpless at my shameless face, and continued: "The Copenhagen interpretation of quantum mechanics believes that observers have an impact on the microscopic world, and the more interesting experiments are the double-slit interference experiment and the Schrödinger cat hypothesis—in short, this school of thought regards human consciousness as a decisive condition for the change of the microscopic world, that is, the so-called 'consciousness monster'. ”

I hadn't heard of anything else, but I was aware of such a famous thought experiment as "Schrödinger's Cat," and I tried to ask, "What is that famous hypothetical experiment?" If you don't open the cat's box, you never know if the cat inside is dead or alive - the decisive condition for the life or death of the cat in the box seems to be the consciousness and behavior that we actively observe. ”

I said this, and seeing that Shen Tangzhi didn't say anything to correct my fallacy, I let go and said, "This is very unreasonable, right? It's almost idealistic already. I remember another saying that the whole world may not exist, it only exists because it is observed, and if the whole world closed their eyes at the same time, the world might not exist. For example, when we open our eyes to see the table in front of us, we can only be sure that the table exists, and when we all close our eyes and cannot touch the table, we cannot confirm that the table is still there. ”

"What you say is 'to be perceived', and to infer that what does not exist is what is not perceived, what is perceived is existence, and what is not perceived is not existing. But this is still very different from what K said. ”

Shen Tangzhi was very dissatisfied with my speech, her words were still a little twisted, but it was obvious that her knowledge in this area far exceeded mine, since this was the case, I closed my mouth knowingly and listened to her first.

"Let's start with the parallel universe theory and Schrödinger's cat. In the cat experiment, if the atoms decayed, the cat was poisoned, and vice versa. The Copenhagenists believe that there is always only one cat in the box, and that the cat is a superposition of "dead and alive" before we observe it, and that the cat's wave function collapses after observation, and half of the cat is likely to be dead and half of it is still alive. The parallel universe theory holds that the cat in the box is not in a superposition state, but "splits" into two, and each experiment must produce a live cat and a dead cat at the same time, but they exist in two parallel worlds. ”

"With that in mind, let's talk about quantum suicide experiments."

"It's still a cat experiment, but we'll switch to a live-action version. Assuming we can use atomic decay to control the trigger of a gun, we can observe whether the person is killed or not – if the atom decays, the gun sends the friend on his way with a "bang". Otherwise, the gun only makes a "click" sound. ”

"If we use some other quantum mechanism, such as a photon that is half-silver-plated, to control the trigger of a gun, and we fire a photon every second – when will this experimenter die?" Shen Tangzhi asked me.

"I don't know, but sooner or later I'll die, and the gun can't be empty forever." I replied.

"You're only half right – if we're the observers, you're right. Because as the probability of atomic decay increases, sooner or later the trigger of the gun will be pulled. But if that experimenter is yourself, it's a different story. ”

"As long as I'm an experimenter, I won't die?" I was a little incredulous, "But the gun will go off eventually." ”

"When a photon arrives at the half-plated mirror, according to Copenhagen, half of you probably hear a "click" and be safe, and the other half will hear a "bang" and then know nothing. According to the parallel universe theory, there must be one you hear "click" and another you hear "bang" in another world! The problem is that the one who hears the "bang" dies immediately, and there is no feeling at all, and the world has no meaning to "you". The only world that makes sense to you is the one you live in. You'll never hear "click" and keep living! Because in the parallel universe theory, there will always be a world where you live! ”