Hawking once held a time party, and as a result, no future humans participated. Why?

In order to prove that he can't go back in time, Hawking once held a time traveler party. He sent an invitation to future human beings, indicating the time and place, and invited them to his time traveler party. As a result, Hawking waited all night and no one came.

Why is this happening? Even a liar didn't show up? The reason is that Hawking is very clever. Although his invitation was written in advance, it was not sent in advance, but afterwards, so as to prevent those fake modern people from pretending to be future time travelers.

However, the question is, why didn't those real-time travelers from the future show up? Can't we really go back in time?

Here I have summarized several possibilities:

1, our universe is not allowed to go back in time. This is the simplest and most rude explanation, and it is also the most likely correct explanation. I wrote an article two days ago (June 22nd) to discuss this problem in detail. You can come and have a look if you are interested. The topic is "Time Travel and Time Paradox-A Deep Discussion on Time Wormhole"

2. Time travelers who can realize time travel in the future have not received Hawking's invitation. There will be two situations here: A. Hawking's invitation to the time party has not been circulated, and there is no information about it in the database of human beings who can realize time travel in the future, so naturally no one will come. B. before time travel was realized, human civilization disappeared, maybe human beings became extinct, or maybe the present civilization was lost, and there was a fault in civilization.

3. In the future, human beings can travel in time and go back to the past, but they can't make a time machine. They can only do it through some special methods, such as wormholes, such as closing a timeline, so they can't accurately locate the time of Hawking's time party, so they can't participate.

4. In the future, human beings can travel in time and go back to the past, and also create a time machine that can accurately locate the past time, but they can't go back to the world before the time machine was made.

In either case, the reality is that no one will attend Hawking's time traveler party. The time travelers from the future that you can hear now are obviously false, because they claim to be from the near future but don't know Hawking's time traveler party. Do you think we are all fools?

Obviously Hawking himself does not believe that time travel can go back to the past. If he can, maybe he will choose to go back to his youth. What about you?

Let's see what this experiment is about first, and then talk about whether there is any problem with this experiment.

Hawking doesn't introduce or comment much. There are both positive and negative comments on the Internet. Let's talk about experiments first. In other words, someone. One day in 2008.

Hawking arranged a sumptuous dinner and invited people who came back from the future to dinner. As a result, no one came after waiting for a long time. Later, Hawking broke the news that he hosted this dinner for future generations on June 28, 2009, but no one attended. I didn't have time to expose the dinner in the media because I was afraid that someone would "eat". So in the end, it was concluded that there was no time to travel.

Let's take a look at Hawking's theory first. Hawking believes that I don't tell the outside world the time and place of the banquet in advance. So before I announce it to the media,

No one knew that I would hold this party before. Thereby effectively avoiding the phenomenon of rice scraping. At the same time, suppose I announce it on June 29, then after June 29, everyone knows about it. So after June 29th, some travelers will know about it and come back for dinner on June 28th. No one goes to dinner now, which means that no one who knew about it on June 29 can travel to June 28, and then infer that time travel does not exist.

However, we can see that this proof process is problematic. First of all, Hawking's behavior of eating first and then sending invitations itself denies the existence of time travel.

Since you deny this conclusion, how can you prove whether this conclusion exists through experiments? Second, Hawking's behavior, if someone goes to eat, is tantamount to directly telling people now that a time machine will be invented after a certain year and they can travel freely. Then, referring to all the current theories of time travel drama, this kind of behavior is dangerous. This is called the butterfly effect. Therefore, "future people" are cautious and don't come to dinner. Third, there are also many scientists who believe that crossing is possible, but only forward, not backward. In other words, crossing must follow some rules.

Let me talk about my own views. Personally, Hawking's experiment is still not rigorous enough. He is assuming that he will "falsify" this matter on the basis of a theory that can travel freely through time and space. But I suppose there are several situations. First, people in the future will disdain to attend your party. Is it okay? Although you are a so-called great scientist now, you may not be great in the future (besides, Hawking doesn't see any real greatness). Why should I go to all the trouble to have dinner with you? Second, in the future, people will only master the technology of traveling through time, but not through space, so they can't reach the meeting place. That is to say, you can travel freely in time, and you must rely on the transportation at that time in space. The third one is similar to the second one. You invited me to dinner in England. As a tourist in China, how can I get there? I can't get my passport after 100, and I can't get my current passport with my ID card after 100. Am I going to sneak into England? As a traveler, I must know the laws of England now, so didn't I sneak into England to die? There are many other bugs used to overthrow Hawking, so let's not give one example. In a word, Hawking obviously made a logical mistake in judging crossing by inviting a guest to dinner.

The future is a concept of human development. There are no future people in the future. The future person is a person who has entered a time that has not yet arrived in the process of continuation, but is actually a present person in the future time. The present at that time is not the present now. It is impossible for people today to meet people today in the future, that is, Hawking said that human beings cannot go back to the past. Then even if there are future people who have not yet reached the time, they can return to the present. Isn't Hawking's words contradictory? . Our present must be the past of the future.

It is definitely impossible for anyone to attend.

We assume that there really is a time machine in the future, and we can travel in time.

It is impossible for future people to participate. Otherwise, it will cause the paradox of time.

Assuming that there are future people attending the dinner that day, Hawking will not send an invitation afterwards.

As already explained, no one attended the dinner that day, even if an invitation letter was sent.

Because from Hawking's point of view, after sending out the invitation, he can only travel back to the dinner day from the time axis. It is possible to meet someone in the future. Because in the timeline on the day of the dinner, the future people must not have received the invitation letter.

People in the future have actually come to the party, but people now can't see it. People in the future can travel back to the past through time and space, but they cannot participate in changing history. Therefore, Hawking's time party is not without the participation of future people, but with the participation of future people. People now can't see it, and people in the future can't communicate with people now. If you ask me why Hawking hasn't seen any future people attending the party since the future people came, it's very simple. Because future people appear in the future and don't exist now, people can't communicate with people who don't exist now, and they can't see things that don't exist now.

On June 28th, 2009, Hawking organized a party. The purpose of the party was to invite time travelers to show up, but in the end, everyone knew that Hawking was alone at the scene and didn't wait for a time traveler to arrive.

The invitation to the party was not sent out in advance. On the contrary, it was sent after the party, and it was marked with the place and time of the party. But in the end, no one came, and Hawking concluded that time travel was not feasible. To tell the truth, this experiment is of little scientific significance, and we can't draw a conclusion because there are too many influencing factors. Even if people from the future really travel, why do they attend Hawking's "Time Traveler's Banquet"? So it's not an experiment in the strict sense, it's just a gimmick.

Time travel has always been a technology that human beings dream of, but in fact there are too many difficulties. First of all, the "grandmother paradox" cannot be solved. So far, only Einstein's general theory of relativity supports time travel scientifically. General relativity holds that space-time is not flat because of the existence of mass and energy, and curved space-time may produce a special situation-two points in different spaces at different times are linked together. Crossing this node is crossing time and space. This node is called Einstein-Rosen ring, or wormhole as we all know.

Wormholes in sci-fi works generally only pay attention to the characteristics of their space tunnels, and do not involve time travel at all. For example, the rainbow bridge in Raytheon, or the wormhole next to Saturn in the interstellar space. Wormholes can exist in theory, but they have not been found yet, and of course it is not clear what it means to cross wormholes. It is likely that the whole person will go in and become elementary particles or energy will come out. This time-travel is meaningless.

Hawking held a time party that no one attended, which didn't make any sense at all.

Hawking holds a time party. Why do others have to attend? Even if there are future people, why do future people have to come to Hawking's party? In the future, people need to know that Hawking's physical condition can't communicate directly at all, so why come here? If people in the future have no time, what about the ability to go back to the past? Still haven't received Hawking's invitation? In addition, the time party is held first, and then the invitation is sent. Hawking's invitation is a test of whether future people exist or not and whether they can return to the past.

The above statements and questions are actually various answers to the reasons why people can't go to the party in the future. Of course, the real reason is that there is no future person at all, and no one can really go back to the past. The following is a detailed explanation.

Past, present and future are three relative concepts, and the past and future are memories and expectations of the present respectively. The past is before the present and the future is after the present. None of them exist, but now they exist in the universe. For the "past", what is left is only image information, but there is no "past", and "past" has passed. The "future" hasn't happened yet, let alone.

According to Einstein's theory of relativity, different motion states or gravitational fields correspond to different reference systems, and different reference systems correspond to different time and space, which is relative. Among them, for time, the simultaneity of time is relative, which can be described by an imprecise sentence: the time passing rate of different reference systems is different at the same time (there is no same time, here is just to explain the instantaneous correspondence); Or compare the relativity of time simultaneity of two different reference systems by using the corresponding states of Wechat business function and original function in calculus. In short, simultaneity is a "parallel" relationship between different subjects and different time and space, and it is two lines. The space-time relationship between "future" and "past" is not a parallel relationship at the same time, but a "series" relationship between the same subject and different time and space, which is a timeline. The future and the past (present) will never intersect. How can future people go to Hawking's time party? Of course, the future and the past are just concepts here, not existence.

The world is irreversible and no one can really go back to the past. Going back to the past indicates that everything in the present will disappear, and reappearing the past means the collapse of space-time in the universe, which is impossible. Science fiction film and television works and people's good wishes, and even some theories understand going back to the past as a person going back to the past intact (including age, body and ideology).

It's impossible.

In fact, during and after returning to the past, this man's time has been passing forward, his arrow of time has not been broken and reversed, and he has never returned to the past in time. In other words, this is not really going back to the past, and he can't go back. People in the future (even those who have a future) can't go back to the past. How can they participate in the past or the present? How can you attend Hawking's time party? On the other hand, everyone honestly lives in the present and can't go back to the past, so they are not future people. "Future" means that it hasn't happened yet and doesn't exist yet. It's not a state of being, it will still exist after the "future", so there is no future person at all, and Hawking will not wait. This is the answer.

There is something wrong with Hawking's logic. He has no correct understanding of the concepts of future, past and present, and has a wrong understanding of the relativity of time and space. He regarded "the future" as a relatively parallel existence state of "the present" in time, so he did this wrong experiment. This can be seen from his behavior of throwing a party before sending an invitation. He doesn't understand the theory of relativity, which is a paradox that violates the law of causality, and finally he will inevitably move towards parallel cosmology.

Seen from here, he lags far behind Einstein.

It comes, but most of us can't see it. Didn't they take hawking away? Hawking is now driving a crane to the west. Well, we were silent for three seconds to show our heavy heart. I still remember that on the day when Hawking died, the news media reported that "Hawking left". My friend told me by phone, did you watch the news? Hawking is gone. I thought it was Hawking who could stand up and walk. It turns out that he has left with aliens.

I think this experiment is meaningless and can't prove anything at all. The earth has existed for so long, and how long has human beings existed until now? Just like the dinosaur era, they also existed, but do they have a future? Suppose there was an experiment similar to Hawking in the dinosaur era, but many years later, all dinosaurs were extinct. Who can come to this activity? But can this prove that there is no future? Our present human age is indeed the future of the dinosaur age, but can humans know that such experiments were conducted in the dinosaur age? Maybe many years later, human beings will become extinct like dinosaurs and appear in another era in our future. Can they know that we have done such an experiment? Does this prove that you can't travel in time in the future?

On the other hand, I wonder why no one is involved, and whether it is possible to guess that human beings will become extinct in the future, because in the future, human beings should be able to travel through time and space at will through more than four dimensions.

The terminator appeared decades ago. I believe that since the United States can make such a time-travel movie, it should not be made up. For example, in the "Black" series of movies, all kinds of aliens disguised on the earth are so big, so why is there life on this primitive planet? So I totally believe that there must be more advanced aliens on earth.

Since you don't come, will other creatures rule the world in the future, or in the near future, the earth can't survive because of the extreme destruction of human beings, and human beings have emigrated to other planets. Evolution is so advanced that we look down on people on the earth now, just as we look down on other primates. Will you be friends with monkeys?

So my personal guess is that human beings have either perished or emigrated to other planets, and the abandoned earth has become the same as other planets in the solar system.