After hearing this explanation, Xiao Yu suddenly understood why he felt familiar when listening to this voice.
Because... this is clearly my own voice in the Earth Age!
"The me from the future, the me five hundred thousand years later, because I did a stupid thing now..." Xiao Yu's thinking became a little rigid at this moment.
This incident was too unexpected. Xiao Yu had already prepared himself mentally. No matter who this unknown existence said he was, he would not be surprised. But in the end, it still surprised him.
Xiao Yu's first reaction was disbelief. Based on a good scientific foundation, Xiao Yu clearly understood how unreliable time travel was. Not to mention the super-light movement in the physical world, except for the approximate cheating of curvature navigation.
Apart from the method, Xiao Yu really doesn't know how to achieve super-light movement.
The limitations of the theory of relativity still firmly bind all matter in flat space, making it impossible for them to overcome the speed of light barrier. Moreover, even if it is possible to reach super-light speed from flat space without using curvature navigation, Xiao Yu cannot
If you believe it, you will really turn back time. The reason is very simple, because there is a paradox in it.
Assuming that super-light motion can really go back in time, does this time-reversal only happen on the material moving at super-light speed, or does it happen in the entire universe? If it happens in the entire universe, there is one thing that is very important.
It’s hard to imagine, that’s why an extremely tiny object moving at super-light speed can affect the entire universe?
If it happened to this single piece of matter, causing it to travel into past time and space, then since the universe does not go back in time, where would it have traveled to?
Under this situation, it seems that it can only be explained by multiverses and infinite time and space, which is the parallel universe theory that is quite popular in the earth's era. This theory believes that the number of universes is infinite, and any small error will lead to a new
The birth of the universe. For example, when a person gets up in the morning and goes to work, when he goes out, whether he steps out with his left foot first or his right foot first, this difference will lead to the birth of a universe. In a universe, he goes out
The left foot was the first to step out. In another universe, his right foot was the first to step out.
As we all know, the position of electrons is uncertain. According to this theory, the movement of an electron will always lead to the birth of a large number of parallel universes. In one universe, a certain electron appears at point a, and in another universe
. This electron appears at point b. There is only this little difference between the two universes.
The parallel universe theory can perfectly solve the time paradox, but there is still a fatal flaw in the parallel universe theory. As long as a very simple logical thinking can overthrow this theory.
In the theory of parallel universes, there are infinitely many parallel universes in the real big universe. Infinitely many, this is a very important concept. This means that no matter how small the probability of something happening, there will definitely be
This thing happened in a universe. For example, a person ate a coin while eating. The probability of this thing happening is calculated as one in ten thousand, and this coin happened to be from ancient times.
The odds of a priceless coin that has been passed down to this day are calculated as one in a billion. If calculated comprehensively, the chance of this person eating a priceless coin in a meal is one in ten trillion. This
The probability is already quite small, but because the number of parallel universes is infinite, it can be certain that among countless parallel universes, there must be one universe in which such a thing will actually happen. That is, in this universe, it will really happen.
A man got a priceless coin after eating a meal.
A very interesting inference can be drawn from this, that is, if the probability of a civilization developing to the highest level of technology is one in ten trillion, and the probability of the top civilization mastering the technology of traveling between different universes is one in one hundred trillion,
The exit location of this civilization that traveled through the universe happens to be in front of your computer, and because of their arrival, the chance of smashing your computer is one in a thousand trillion. So based on comprehensive calculations, your computer will be transported through time.
The chance of being destroyed by an incoming civilization is only one in one million trillion, but don’t forget that the number of parallel universes is infinite. Even if the chance of this happening is only one in one million trillion, even if
With such a small probability, it is bound to happen - because parallel universes are infinite, it's that simple.
But now we are still sitting in front of the computer, and there is no sudden brain-dead civilization that smashes our computer. So this can prove that infinite parallel universes do not exist. Maybe parallel universes really exist, but
It will definitely not be infinite, its quantity will definitely be limited.
Since it is impossible to go back in time, at least based on Xiao Yu's current level of technology, it is impossible, and because a guy who claims to be himself five hundred thousand years later has traveled from a limited parallel universe, such a small probability
The incident is unlikely to happen, so where did the guy in front of me come from?
After hearing what this guy said, Xiao Yu's first reaction was that this guy was a liar.
Not only did Xiao Yu's guard not let down, but it became even tighter. Xiao Yu said coldly: "I can't believe you. Give me an explanation. Before you give me this explanation, I won't believe anything you say."
"Oh? What explanation do you want?" Xiao Yu soon received a message. This message was full of a very interested tone.
"It's very simple. Explain why you came here from five hundred thousand years later and how you did it. In my technological system, time travel is impossible. If you want to admit time travel, I have
The theoretical system will be overthrown, and relying on a set of wrong theories, I don’t believe that in half a million years, I can still develop to the point like you. This is a contradiction, and before you can reasonably explain this contradiction,
It's impossible for me to believe you." Xiao Yu said.
"Your statement is wrong. People on earth in ancient times believed that the earth was flat and the sky was round. This is obviously a wrong theory. However, under the wrong theory, human beings still developed brilliant civilization and technology.
The development of science lies in constantly summarizing laws from phenomena, and then using this set of laws to solve other problems. Science allows the existence of errors, and the significance of scientific progress lies in constantly correcting these errors." This unknown existence answered
road.
"You haven't answered me yet, how did you realize your time reversal." Xiao Yu still refused to relax his guard and asked guardedly.
"Okay, since you want to know, then I'll tell you." The existence replied, "Why can't we turn back time?"
"It's very simple, entropy increases." Xiao Yu replied.
"The entropy value of an independent system will only increase, not decrease, right? If there is external energy support, can the entropy value be reduced? If the entropy value is reduced, will time go back?"
Xiao Yu was stunned for a moment. In fact, no matter whether this guy proposed the theory of super-light time travel or the theory of infinite parallel universes, Xiao Yu would refute it mercilessly. However, Xiao Yu did not expect that this guy would actually come up with such a statement.
Xiao Yu has no way to refute this statement. The reason is very simple, because theoretically, this statement is correct. As long as the entropy value can be reduced, time can go back. But, just, how can the entropy value be reduced? Is it really possible?
Is there an external universe?
Xiao Yu didn't know these things. This was beyond Xiao Yu's cognition. But Xiao Yu was only confused for a moment before he realized it.
Xiao Yu sneered.
"Are you saying that you used the energy of the external universe to turn back time in this universe? Then there is a question that interests me. Since you can travel through the universe and turn back time in a large universe, what else is there?
Is there something you can't do? Will you travel from half a million years ago to the present to find me?"
This is unreasonable. Xiao Yu is facing this unknown existence with the greatest caution. No matter from the scientific or logical aspects, Xiao Yu will raise the greatest doubts about every word it says. If its statement is perfect,
If you are strictly self-consistent, maybe you will believe it 10%.
"I don't have that powerful ability." This unknown existence sighed, "In fact, even I am not sure whether there are other universes outside our universe, let alone traveling to other universes.
, borrowing the energy from the rest of the universe.”
"So, how do you reduce the entropy value?" Xiao Yu asked in a very interested tone.
"It's very simple, use the energy of this big universe to reduce the entropy value of this big universe." The unknown existence replied.
"Absurd." Xiao Yu retorted mercilessly, "I have never heard of a person who can grab himself by his hair."
"Who said... I reversed the time of the entire universe?" This unknown existence said slowly, "Treat the Milky Way as an independent individual, and then extract the energy of other river systems to reduce the entropy value of the entire Milky Way.
, reversing the time of the entire galaxy and bringing the galaxy back to the present half a million years ago, what do you think of this explanation?"
"Huh?" Xiao Yu only felt a sledgehammer hit his host, causing him to temporarily fall into a panic. (To be continued, please search Piao Tian Literature, the novel is better and updated faster!
ps: Finally updated on time... Well, please give me a monthly pass, after all, we are still in the double monthly pass period.