Talking about time travelers.

Let's look at 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.

In fact, people in the future did attend the banquet hosted by Hawking.

In the next 2xxx years, in xx, xx, xx, xx, xx minutes, xx seconds, xxx milliseconds, humans successfully conducted the first time machine test, but they chose the ultra-ancient times as the target time.

With the sound of shouting countdown, there was a tense atmosphere in Jiayuguan laboratory. All the researchers involved in the experiment were very nervous, afraid to relax their breath, staring at the beating numbers on the display screen, afraid. ...

time goes by ...

With the sound of "... 10, 9, 8 ...3, 2, 1 ~ Start ~", the time machine started! The experiment has begun!

about ...

……

This is a very strange paradox, which can be explained in many ways.

In the future, people will not develop a time machine because they find that time is irreversible.

In the future, people may have mastered some kind of stealth method or technology, so that we can't find it, because if it is realized by us, we will know that time can be reversed, which will lead to the accelerated development of human science and technology, and eventually lead to great changes in human civilization.

Maybe the laws about time will be very strict in the future. This is my simulation of the law of time.

1. Everyone has to change into clothes of that era when crossing time, and can't carry modern items.

You can't be discovered by people of different times.

If it is discovered by people of different times, you must know yourself.

You can also make many procedures about the appointed time, such as visas.

With the change of the earth's environment, the future environment is no longer suitable for human survival, and human beings have become extinct in the future.

You can't go back and kill your grandmother.

Because if you kill your grandmother, you will not exist, which proves on the other hand that time is irreversible.

These are my views on this issue, thank you.

Relativity, why does it sound mysterious?

Relativity is about the curvature of space-time. Then we must first define what is time and space. What is the time? What is space? Time is the physical quantity that people express the past, present and future order. Space is a physical quantity that people express left and right, front and back, up and down. What are the physical quantities? Physical quantity is the quantity that people describe the state of an object. Accordingly, the essence of time and space is that human beings describe the physical quantities of nature. It belongs to the category of human consciousness. You can't say that time and space are matter. According to the above analysis, we can't tie "time and space" and "bending" together. However, the theory of relativity wrongly links "time and space" with "bending", so its subsequent content is doomed to be mysterious and absurd.

Physics is reality, which is manifested as the basic analysis method of physics, that is, the analysis of force, that is, the analysis of the force of interaction between substances. If it is separated from the analysis of force, physics will become metaphysics, and it will not be physics.

The following is a group of vernacular Chinese. It seems real [picking your nose]. If he succeeded, how could he let us know? No matter what angle you consider, ordinary people don't need to know whether aliens exist or not, do they? What's more, time travel is a higher-end existence than aliens [picking your nose]

First of all, I have thought about it myself. If I were a time traveler, I wouldn't take part in it. Meaningless. If I go, I will rewrite history. If I go back, I can come back or not. What will happen if I come back? If I can't come back, I'll make a fortune myself. Who cares?

It seems that Hawking really doesn't know what time is. Do you know what time the party is? Great scientists can joke!

What is a time traveler? It is a time traveler, who can travel from the present to the past or from the future to the present.

The exact time of this party is June 28th, 2009 London time 12.

The banquet was held in gonville and Case College of Cambridge University. He was filled with delicious food and champagne, and clusters of balloons were tied to the post. The scene is grand and warm.

Hawking is in a wheelchair, waiting for the guests with his unique temperament. Above Hawking's head, there is a sign that says: Welcome time travelers.

So if there are time travelers in the world, you should know that this banquet is for them, so why not have a good time? Isn't it something to boast about that people in the future will be lucky enough to meet this legendary scientist who has passed away?

Just like how awesome it would be if we could go back in time and meet Newton now.

There are time travelers who can go now, and there will be such travelers in the future. Because of Hawking's reputation and piety, if you have ten thousand years to travel, you can still go happily.

Afterwards, some people attributed the failure of this invitation to Hawking's failure to send an invitation in time, and did not send an invitation until after the banquet.

These people have no idea what kind of party this is. This is an invitation to the future, a party for future travelers. We have come to the future now, you know and I know. Do we need an invitation?

This is a scientific burden thrown by the wise Hawking, and only future people can untie it, so only future people can keep appointments.

For example, if I have that ability, I will definitely go to this legendary figure for a while, eat a few mouthfuls of delicious food and drink a glass of champagne. Why not?

Unfortunately, no one came. This may be Hawking's original intention. Without time to travel, the future can never return to the present, and now it is impossible to return to the past.

This is a paradox.

If people can go back to the past, it will affect or change the history of the past. Since history is not the past, how can it be the present? How can the future be the future?

In that case, how could that person cross back?

Actually, it's not that cruel and bloody. Back in the past, I stepped on an ant and peed, which also changed history. Today is not today. I will talk about whether you are here or not.

So time travel is bullshit.

This lunch is of course very meaningful. Hawking said: "I put forward an experimental evidence that time travel is impossible." I held a party for time travelers, but I didn't send out an invitation until after the party. I waited for a long time, but no one showed up. " ?

He did it, which proved impossible, so it was not a stunt at all. No one really appreciates his face, which confirms his assertion.

For example, at the age of 65, he is paralyzed and only has two fingers to move. After sitting in a wheelchair for 40 years, in 2007, he boarded a plane and experienced an experiment close to zero gravity (weightlessness) at an altitude of 10,000 meters.

At the end of his later life, he led a group of scientists and business leaders to launch the famous breakthrough project of shooting and listening to stars, which was a shocking pioneering work in exploring space and looking for extraterrestrial civilization.

His popular science masterpieces, such as A Brief History of Time, have inspired and guided people who love science in Qian Qian. His research on the origin and evolution model of black holes and the universe is unique in the scientific community.

That's it. Welcome to discuss.

Time is impossible to travel. Assuming time can travel, you shot yourself five minutes ago. You died five minutes ago. How did you get here now? Some people explain that it is a parallel universe, and there will be no parallel universe. When you go to a fork in the road, you choose one of them, and there will be no you on the other road.

Travelers are busy with asset layout and have no time to attend this banquet, which wastes time and can only bring Hawking fame.