Throwing an "sorry" look at An Yilun, Jiang Yu turned around and walked towards Megumi Kato, looked at the place on the screen she was pointing to, thought for a while and said, "Observer...... Well, I'm afraid I can't explain it clearly, so I'll look at Wikipedia and explain it. ”

As he spoke, Jiang Yu took the mouse, operated it twice at random, and entered the observer page of Wikipedia. Jiang Yu then explained: "The so-called 'observer', or 'Observer' in English, is usually an idealized or illusory person or instrument that measures the relevant physical properties in physics. ”

"Because the premise of the observer's existence, the worldline convergence theory, cannot be proven or falsified, the observer in this project is only an idea based on my understanding."

"For the physical definition, the only advantage of the observer designed in this proposal is that it can jump the timeline and retain the memory of the different timelines, but the world line will develop based on the observer's impressions."

After a pause, Jiang Yu looked at Megumi Kato with a look of incomprehension, sighed lightly, and continued: "Let's put it this way, the selectivity of observers is that the reason why the world is like this is because we observe it like this. ”

In the process of observation, there is a shift from "possible" to "real". If we want to describe what happens in an atomic event, we must recognize that the word "occurs" can only be applied to observations, not to the state of affairs between observations. ”

"It applies only to the physical act of observation, not to the mental act of observation, and we can say that the transition from "possibility" to "reality" occurs only when the object interacts with the measuring instrument and thus also with the rest of the world; It has no connection with the observer's mental behavior of recording the results. ”

In other words, no matter what efforts the observer makes to change the outcome of an event after knowing it, as long as the conditions of the world line for the transformation of the event from "possible" to "real" are met, then the event will reach the result in the observer's impression.

In one breath, Jiang Yu said a long speech. Even he himself felt a little surprised after saying that.

When will I be able to speak like this?

Maybe it's just about what I'm interested in......

When he came back to his senses, Jiang Yu found that Megumi Kato and An Yilun were both looking at him with a confused expression. Megumi Kato couldn't digest it because Jiang Yu said too much at once, and An Yilun didn't understand what Jiang Yu was talking about at all.

After all, he didn't know much about Jiang Yu's plan book, and when he was in school before, he mostly talked about ACG and the light novels written by Jiang Yu.

Even fundamentally, before this morning, Jiang Yu's plan book had not even been written. I always feel that I can understand the helplessness of the editor when the writer delays the manuscript~

So, An Yilun, who has the creed of "ask if you don't understand", asked out loud: "Wait——! What have you been talking about since the beginning? Ah Yu? ”

"Is that the concept of an observer? I wrote a game plan...... Oh, by the way, you haven't read my proposal yet. Jiang Yu patted his head, looking suddenly realized.

An Yilun also raised his eyebrows, and asked in surprise: "You have already finished writing the plan book?" ”

Jiang Yu touched the bridge of his nose and explained: "I wrote a rough idea, mainly because the character settings and plot lines have not yet been completed." At present, only two main characters have been designed, and the plot line has not yet been written. ”

"Tsk, is it my delusion that I always feel like I've become so professional all of a sudden?" After An Yilun also listened to Jiang Yu's words, he suddenly said with a smile.

Jiang Yu shook his head and said with a smile: "So, who do you think first proposed to make games?" ”

"Well...... Don't worry about this little thing. Let me see your proposal! I'm looking forward to it~ Especially after listening to your unclear explanation just now, my curiosity is even stronger. ”

An Yilun also perfunctorily passed Jiang Yu's question, and then said excitedly.

"Hmm...... Do u zo, but I can't guarantee you'll be satisfied, right? Glancing at Megumi Kato, who was trying to digest what he had just said and looking thoughtful, Jiang Yu took the computer and said to An Yilun.

After all, according to the impression that An Yilun also gave Jiang Yu before, he was just fascinated by the genre of galgame, and Jiang Yu didn't hear much about other kinds of games.

Then An Yilun also began to look at the "Gate of Destiny Stone" plan written by Jiang Yu with great interest, and at the same time, Jiang Yu looked at Megumi Kato on the side and said, "Does Kato know about the "grandfather paradox"? ”

Megumi Kato raised her head a little dazedly when she heard this, and there was still a look of doubt on her face, and she subconsciously shook her head.

Jiang Yu sighed helplessly and said, "Let's put it this way, the 'Grandfather Paradox' is a famous paradox that prevents time travel from happening, which roughly means that if a time traveler goes back in time and kills your grandfather/grandmother before their mother is born, will the time traveler himself still exist?" ”

"Ah~ I seem to have seen this, I remember that it can be explained by that parallel something, right?" Unexpectedly, Megumi Kato responded.

Jiang Yu nodded and agreed: "Yes, it can be explained by 'parallel universe'. However, the "worldline convergence theory" is contrary to the idea of "parallel universes". ”

After a pause, giving Megumi Kato a moment to understand, Jiang Yu said: "Somewhat similar to the "observer" proposed in this proposal, there is also an "observer theory" that tries to explain this "grandfather's paradox". ”

"The theory is that when time traveling, the traveler can only become an observer, unable to change or touch anything, and for people in the past, the time traveler does not exist and they cannot see it; Although the time traveler saw them, they could not make any sounds they could hear, touch anything, or reach them in any way, so they could not kill their grandparents. ”

And the observer, that's probably the concept. The difference is that although the observer can foresee the outcome of the things in his cognition, he can also try to change it, but in most cases, the observer's actions are in vain, because the world line will be closed, and as long as you are still in this world line, as long as your cognition based on the world is still the result, then everything cannot be changed. ”