Listening to an academic paper that has been verified countless times by oneself, no matter how academically literate a scholar is, he will doze off. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Noah copes with this problem by keeping his image there and saying that he is listening.

"That's my point, thank you for your patience and if you have any doubts, please point them out."

After Vader finished speaking, he looked at the crowd in the audience, and there was silence......

Except for Noah, everyone did not dare to take this defense lightly, and many scholars sat in the back waiting to ask questions, but Noah in front of them did not say anything, are they really qualified to point out what they consider to be the "loopholes" in this paper?

All the scholars and professors did not dare to say anything, waiting for Noah's statement, and the point is that the "Noah" in front of him is just an image left by Noah to show that he is listening, and he has no idea or ability to ask questions at all......

The auditorium suddenly became cold, and Vader, who was standing on it, didn't speak, didn't speak, and it was impossible to step down directly...... suddenly fell into an extremely embarrassing situation.

Karen couldn't stand it anymore and sent a connection request to Noah, waking up Noah, who was "dozing off".

At this time, Noah, who was busy with civilization going up and down trillions of times per second, turned his attention back to this auditorium, and in less than a subtle time, he understood the embarrassment through the surveillance video, and the girl sat in her seat and coughed lightly.

This voice was no different from the sound of heaven for Vader standing on the stage and the group of scholars behind him.

"Your paper is interesting and shows your academic skills that don't match your age...... But there are also some inconsistencies and questions, and I believe that some scholars will point them out to you. ”

"Thank you...... Thank you. ”

Vader was a little flustered, not knowing what to answer, only thanks.

"Let's not talk about theoretical problems, I'll mention an interesting place, in your opinion, parallel universes exist, and wormholes are likely to be bridges between different universes, what you call time and space travel, that is, it is very common in science fantasy to travel through time and space is equivalent to going to another parallel universe, and everything that happens in that universe will not affect the development of the original universe, so you can avoid the limitations of the "grandmother's paradox", right? ”

Noah said lightly, Vader was surprised, mentioning that time travel was just because this was his long-standing ideal, in fact, it didn't have much to do with the topic of the paper, but he didn't expect Noah to ask a question here, but he still nodded and said.

"I believe that time travel is achievable, when a person travels back in time and space, the moment he appears in the past, the direction of the universe is separated from the original universe and becomes another parallel universe, in that parallel universe you can meet the "self" of that time and space, but even if you kill the "self" of that time and space, he will not be affected, because he does not belong to this universe in the first place, but comes from his original universe, and in the original universe, his existence will disappear completely...... In this theory, the universe is seen as countless parallel lines, and the so-called time travel is just jumping in these cosmic lines, which is a theory that I like very much, called "The Separation and Convergence of World Lines", which was proposed in a science fiction book I read when I was a child. ”

It seemed that when talking about this kind of thing, Vader would start to get excited, and his tone would become unusually smooth, and the scholars sitting in the back of the stage began to whisper, after all, it was very inappropriate to propose fantasy things in such a solemn place, Noah said lightly.

"I don't want to talk too much about whether other universes exist...... "Time travel" by jumping through parallel universes can avoid the "grandmother paradox", but it seems that some logical problems arise. ”

Noah said slowly, Vader suddenly came to his senses, although he never thought that he could talk about his hobbies with the supreme leader of civilization in such a place, but time travel can almost be said to be his ideal, when someone points out his academic mistakes, he will humbly accept it, but if his ideal is unrealistic, he can't bear it.

"Master, where is the logical problem with the worldline theory? It can already circumvent the biggest logical problem, the "grandmother's paradox". ”

Vader asked seriously and aggressively, looking at Noah's eyes full of determination, he was ready to refute any theoretical questions of Noah, after all, whether it is a wormhole or a parallel universe, it is something that cannot be confirmed by the current civilization, since it cannot be refuted theoretically, then there is only a logical problem, but Vader does not think that there is a logical problem.

The corners of Noah's mouth curled a little, and he said slowly.

"Taking today as the time axis, suppose tomorrow's A returns to yesterday and meets yesterday's self, we record yesterday's A as A1, and A and A1 had an hour-long conversation yesterday, in your worldline theory, it is equivalent to A going from his original universe to another parallel universe and meeting himself A1 in that universe, right?"

"Yes, the A of the original universe has disappeared at this moment and appeared in the universe of A1."

"We record the original universe of A as the α universe, and the universe in which A1 is in the β universe, α there is no A in the universe anymore, and both A and A1 are in the β universe, right?"

"Yes."

A and A1 had an hour-long conversation in "yesterday" and then separated, β the time of the universe runs to "today", if A returns to "yesterday" for the second time travel today, will he be able to see himself A who came from the α universe for the first time travel yesterday and A1 who came from the β universe, because time travel is just a jump in parallel universes, in this way, A of the second time travel goes to the universe with both "yesterday" and "tomorrow", plus "today" himself, Are there three A's in that parallel universe? ”

"Yes."

We can record the universe that A goes to for the second time travel as a γ universe, and A meets two selves at the same time in this universe, then the question arises, the timeline of this γ universe is "yesterday", and A comes from "today", so which universe does the A of "tomorrow" in the γ universe come from from the three time travel from α, β, and γ? ”

"From ......"

Vader was about to answer, but suddenly found himself speechless, there was a logical conflict here, time travel only involves three universes, but there are three A's in the third universe at the same time, in addition to the original A in the third universe and the A that has jumped through "time travel", which universe does the extra A come from?

α universe? There is only one A in "yesterday", time travel to the β universe, β universe? There are only two A's in "yesterday" and one "tomorrow" from the alpha universe. And the "yesterday" of the γ universe, apart from the A that originally existed and the A who jumped from the "today" of the β universe, which universe did the A from "tomorrow" come from?

Fundamentally, there is irrationality in this.

Vader now knows that the so-called worldline theory itself is a joke, that there is a fundamental logical conflict with it, and that the existence of this logical problem proves only one thing.

Either there is no parallel universe, or the parallel universe theory cannot be used to explain time travel, and without the parallel universe theory as a support, the existence of the grandmother's paradox also proves that time travel is not feasible.

Whether it is the non-existence of parallel universes or the non-existence of time travel, it is a declaration of the collapse of Vader's ideals.

Standing on the stage, Vader was pale and short of breath, and his disillusionment was more devastating than anything else.

"You are very talented, but you are still too young, there is no end to the road of science, don't underestimate the monster of science because of a little achievement."

Noah said lightly.

"There was a physicist named Newton in the past civilizations of the earth, who said that I do not know what kind of person I am in the eyes of others, but in my own eyes I am like a child playing on the seashore, complacent at the occasional discovery of a pebble smoother than usual, or a shell more beautiful than ordinary, and not at all of the vast ocean of truth that unfolds before me."

Vader raised his head, his pale face, and looked at Noah, who was quietly watching him from the audience, his lips trembling a little.

"The vastness of ...... Ocean of Truth ......"

Noah's eyelids drooped, and his voice was very ethereal.

"I don't believe in time travel, and I don't fantasize about whether I can go back in time and change anything, so I'll always look to the future, even if it's cruel, at least I didn't know until I experienced it."

Today, what Noah said to Vader, and the famous words from Earth, will be Vader's eternal warning, paving the way for one of the greatest scientists of the future of Earth's civilization.