Chapter 381: Reverse Galaxy

After hearing this explanation, Xiao Yu suddenly wanted to understand why he felt familiar when he heard this voice.
Because ... this is clearly the age of the earth, your own voice!
"I am from the future, I am half a million years later, because I have done a stupid thing now ..." At this moment, Xiao Yu's thinking was a little rigid.
This matter is really unexpected. Xiao Yu has made psychological preparations, no matter who this unknown existence says he is, he will not be surprised. But in the end it surprised himself.
Xiao Yu's first reaction was unbelief. Based on a good scientific foundation, Xiao Yu knew very clearly how unreliable the time travel thing was. Don't talk about the super-light-speed motion of the physical world. Except for the approximate cheating method of curvature navigation, Xiao Yu really doesn't know how to achieve super-light-speed motion.
The limits of relativity still firmly bind all the material that flattens the space, making them unable to cross the obstacle of the speed of light. Moreover, even if you really reach the speed of light from the level space without sailing through the curvature, Xiao Yu does not believe that time will really go back in time. The reason is simple, because there is a paradox.
Suppose that the motion of super-light speed can really go back in time. Then, does this time-lapse happen only on the material that moves at the speed of light, or does it happen in the whole universe? If it happens in the whole universe, there is one thing that is hard to imagine. That is why an extremely tiny object can affect the whole universe at the speed of light.
If it happened on this separate matter, causing it to pass through the time and space that has already passed, then since the universe has no time backwards, what place will it pass through?
In this case, it seems that only the multiverse can be used. Infinite space-time to explain, that is, the parallel universe theory that was quite popular in the earth's age. The theory holds that the number of universes is unlimited, and any small error will lead to the birth of a new universe. For example, when a person gets up in the morning to go to work, when he goes out, whether to step out of the left foot or the right foot first, such a difference will lead to the birth of a universe. In a universe, the first thing he stepped out of was his left foot. In another universe, he walked out with his right foot first.
As we all know, the position of electrons is uncertain. According to this theory, the movement of an electron will lead to the birth of a large number of parallel universes all the time. In a universe. An electron appears at point A, in another universe. This electron appears at point B. There is only such a difference between the two universes.
Parallel universe theory can solve the paradox of time perfectly, but there is still a fatal flaw in parallel universe theory, as long as a very simple logical thinking can overthrow this theory.
In the theory of parallel universes, there are an infinite number of parallel universes in the true big universe. Infinite, this is an important concept. This means that no matter how unlikely a thing will happen, there must be a thing happening in the universe. For example, a person eats a coin while eating. The chance of this happening is calculated as one in 10,000, and then this coin has just passed from ancient times to the present and has a great value. This probability is calculated as one in one billion. In a comprehensive calculation, the probability that this person would eat a meal and eat an invaluable coin is one in ten trillion. This probability is already quite small, but because the number of parallel universes is infinite, then it is certain that Among the countless parallel universes, there must be a universe that will actually happen, that is, in this universe, there is really one person who eats a meal and eats an invaluable coin.
An interesting reasoning can be made from this, that is, if the probability of a civilization developing to the highest level of science and technology is one tenth of a trillion, and the highest civilization is one hundredth of a billion to grasp the technology of traveling through different universes And the exit of this civilization that shuttles the universe is exactly in front of your computer, and because of their arrival, the chance of smashing your computer is one in one trillion, then comprehensively, your computer is crossed The chance of the coming civilization breaking is one in one trillion trillion trillion, but do n’t forget that the number of parallel universes is unlimited, even if the chance of this happening is only one in one trillion trillion trillion trillion, With such a small probability, it is bound to happen-because the parallel universe is infinite, it is that simple.
But now, we are still sitting in front of the computer, and there is no sudden brain-disabled civilization that smashes our computer. Then it can be argued that an infinite number of parallel universes do not exist. Perhaps the parallel universe really exists, but it will never be infinite, and its number must be limited.
Since time is not possible, at least it is impossible to speculate based on Xiao Yu's current level of technology, and because of a small person who claims to be his own after 500,000 years through a limited parallel universe, such a small probability The incident is unlikely to happen, then, where did this guy come from?
After hearing this guy ’s statement, Xiao Yu ’s first reaction was that this guy was a liar.
Instead of letting go of Xiao Yu's caution, he became more strict. Xiao Yu said coldly: & t; I can't believe you. Give me an explanation. I won't believe everything you say before giving me this explanation. "
"Oh? What explanation do you want?" Xiao Yu quickly received a message. This message is full of a very interested tone.
"It ’s very simple. Explain why you came here after half a million years and how you did it. In my technology system, space-time shuttle is impossible. If you want to recognize space-time shuttle, I have The theoretical system will be overthrown, and relying on a wrong theory, I do not believe that after 500,000 years, I can develop to the point where you are. This is a contradiction. Before you can reasonably explain this contradiction, I can't believe you. "Xiao Yu said.
"You are wrong. The ancient people of the earth believed that the earth was flat and the sky was round. This is obviously a wrong theory, but in the wrong theory, human beings have still developed a brilliant civilization. Technology The development of China lies in continuously summing up the laws from phenomena, and then using this set of laws to solve the remaining problems. Science allows errors to exist, and the significance of scientific progress lies in constantly correcting these errors. "This unknown existence answers Road.
"You haven't answered me yet, how exactly did you go back in time?" Xiao Yu still refused to relax his alertness, asking with alert.
"Well, since you want to know, I'll tell you." The existence replied, "Why can't time go backwards?"
"It's simple, the entropy increases." Xiao Yu replied.
"The entropy value of an independent system will only increase, will it not decrease, right? If there is external energy support, can it be lowered? If the entropy value is lowered, will time go backwards?"
Xiao Yu froze for a moment. In fact, no matter what this guy puts forward the theory of super-light time-lapse or infinite parallel universe theory, Xiao Yu will relentlessly refute it, but Xiao Yu did not expect that this guy even put forward such a statement.
Xiao Yu could not refute this statement. The reason is simple, because in theory, this statement is correct, as long as the entropy value can be reduced, time can go back in time. Just, just, how can the entropy value decrease? Is there really an outer universe?
Xiao Yu doesn't know these things. This is outside the scope of Xiao Yu's cognition. But Xiao Yu only confused for a moment and reacted.
Xiao Yu laughed coldly.
"You are saying that you are using the energy of the external universe to turn the time of this universe back? Then there is a problem I am very interested in. Since you can shuttle the universe and let a big universe go back to time ~ EbookFREE.me ~ So what else is there that you can't do? It will make you come to me from 500,000 years ago to now? "
This is counterintuitive. Xiao Yu is facing this unknown existence with the utmost caution. No matter from the aspect of science or logic, Xiao Yu will put the biggest doubt on every word it says. If its statement is perfect and strictly self-consistent, perhaps you will believe it ten percent.
"I don't have such a powerful ability." The unknown existence sighed, "In fact, even I can't be sure that there is no other universe outside our universe, let alone shuttle into the other universes , Borrowing the energy of the rest of the universe. "
"So, how do you reduce the entropy?" Xiao Yu asked in a very interesting tone.
"It's very simple. Use the energy of this big universe to reduce the entropy of this big universe." The unknown being replied.
"It's ridiculous," Xiao Yu retorted mercilessly. "I haven't heard of anyone who can grab his own hair and grab him."
"Who said ... I reversed the time of the entire universe?" This unknown existence slowly said, "Take the Milky Way as an independent individual, and then extract the energy of the remaining rivers to reduce the entropy of the entire Galaxy "Reverse the time of the entire Milky Way, and return the Milky Way to what it is now 500,000 years ago. What do you think of this explanation?"
"Eh?" Xiao Yu only felt that a sledgehammer hit his own host, and temporarily fell into a crash.
PS: It was finally updated on time ... Well, please ask for a monthly pass, after all, it is still in the double monthly pass period.