Let’s first take a look at what this experiment is about, and then talk about whether there are any problems with this experiment.
I won’t introduce Hawking, and I won’t comment much. There are both positive and negative comments online. Let’s talk about the experiment first. In other words, a certain. One day in the year
Hawking prepared a banquet and invited people who had traveled back from the future to the banquet. As a result, no one came after waiting for a long time. Later, Hawking revealed that he held a dinner party for future people on June 28, 2009, but no one attended. The time of the dinner was not disclosed to the media because they were afraid that someone would come to "take advantage of the meal". So in the end it was concluded that there is no time travel.
Let’s take a look at Hawking’s theory first. Hawking believes that I will not tell the outside world the time and place of the banquet in advance. Then no one knew I was hosting this party until I announced it to the media
. This can effectively avoid the occurrence of "sitting on rice". At the same time, assuming I announce this matter on June 29, then everyone will know about it after June 29. Therefore, after June 29th, there will be time-travelers who know this and go back to the banquet on June 28th. And now no one is going to the banquet, which means that everyone who knew about it on June 29th cannot travel to June 28th, and it can be inferred that time travel does not exist.
But we see that this proof process is problematic. First of all, Hawking's behavior of eating first and then sending invitations denies the existence of time and space travel.
Since you have denied this conclusion, how can you prove through experiments whether this conclusion exists? Second, if someone goes to a banquet with Hawking's behavior, it is equivalent to directly telling people today that in a certain year, a space-time machine will be invented and people can travel freely. Well, referring to all current time-travel drama theories, this behavior is dangerous. This is called the butterfly effect. Therefore, the "future people" were cautious and did not come to the banquet. Third, many scientists believe that time travel is possible, but it can only be done forward but not backward. In other words, time travel must abide by certain rules.
Let’s talk about my own views. Personally, I think Hawking's experiment is not rigorous enough. He was assuming that he could "false" the matter of time travel on the basis of a theory of being able to travel freely through time and space. But let me assume a few situations. The first one is that people in the future will not bother to attend your banquet. Can you? Although you are a so-called great scientist now, you may not be great in the future (not to mention the fact that Hawking cannot see any substantial Great), why should I go to all the trouble to come and have dinner with you? Second, people in the future only have the technology to travel through time, but not the technology to travel through space, so they cannot reach the venue. That is to say, you can travel freely in time, but you must rely on the transportation at that time in space. The third option is similar to the second option. You are treating guests to dinner in the UK. How can I, a Chinese traveler, get there? It will definitely not work if I get a passport 100 years from now. I will apply for a current passport with an ID card from 100 years later. It definitely won't work either. Do I want to smuggle myself into the UK? As a traveler, I must know the current laws in the UK. So if I smuggle into the UK, am I not seeking death? There are many other bugs used to overthrow Hawking, so I won’t list them all. In short, Hawking obviously made a logical mistake when judging time travel from treating guests to dinner.
In fact, people from the future did attend the banquet hosted by Hawking.
At xx hours xx minutes xx seconds xxx milliseconds on xx month xx in the future AD 2xxx, humans successfully conducted the first time machine test, but they chose the ultra-ancient era as the target time.
As the sounds of countdowns came one after another, the atmosphere in the Jiayuguan laboratory was filled with tension. All the scientific researchers involved in the experiment were nervous, not daring to relax and breathe, and stared intently. The numbers jumping on the display screen are scary...
Time passes second by second...
With "...10, 9, 8...3, 2, 1~ Start~" the voice came, and the time machine started! The experiment begins!
As for...
...
This is a very strange paradox that can be explained in many ways
In the future, people will not Develop a time machine because time is found to be irreversible
People in the future may have mastered some kind of invisibility method or technology so that we cannot detect them, because if they are aware of us, we will Knowing that time can be reversed will lead to accelerated development of human science and technology, and ultimately lead to huge changes in human civilization
Perhaps the law of time will be very strict in the future. Here is my simulation of the "Law of Time"
1. Everyone who travels through time should wear the clothes of that era, and no modern items are allowed
2. Your existence cannot be discovered by humans of different eras
3 .If you are discovered by people from a different era, you must understand yourself
It is also possible that many procedures related to time travel will be developed, such as visas
As the earth's environment changes, the future environment It is no longer suitable for human survival, and humans will be extinct in the future
You cannot go back in time and kill your grandmother
Because if you kill your grandmother, you will not exist. , which also proves that time cannot be reversed
The above is my opinion on this issue, thank you
Why does the theory of relativity sound mysterious?
The theory of relativity talks about the curvature of space and time. So we first need to define what is space-time? What is time? What is space? Time is a physical quantity used by people to express the order of past, present and future. Space is a physical quantity that people use to express the order of left and right, front and back, and up and down. So what are the physical quantities? Physical quantities are quantities that humans use to describe the state of objects. According to this, the essence of space and time is the physical quantity used by humans to describe nature. It belongs to the realm of human consciousness. You cannot say that space and time are matter. Based on the above analysis, we cannot bundle "space-time" and "bending" together. However, the theory of relativity mistakenly links "space-time" and "bend" together, so its subsequent content is destined to be mysterious and absurd.
Physics is real, and reality is reflected in the basic analytical method of physics, that is, force analysis, that is, force analysis of the interaction between matter and matter. If we break away from the analysis of forces, physics will become metaphysics, and it will no longer be physics.
The following is a group of vernacular people. He said it as if it was true [picking his nose] How could he let us know whether he succeeded or not? No matter what angle you think about it, there is no need for ordinary people to know whether aliens exist or not, right? What's more, time travel is a higher-end existence than aliens [picking nose]
First of all, I thought about it. If I were a time traveler, I would not participate. It makes no sense. If I go, I will rewrite history. Will I be able to come back or not? What will happen if I come back? Will I still exist? If I can’t come back, I will make a fortune by myself. Who else is going to go there?
It seems that Hawking, the scientist, really doesn’t know what time is? Can the time party know what time is? A great scientist makes a joke!
What is a time traveler? He 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 12 o'clock London time on June 28, 2009.
The banquet was held at Gonville and Caius College, University of Cambridge, England, where he placed food and champagne, and clusters of colorful balloons tied to the pillars. The scene was grand and warm.
Hawking sat in a wheelchair, waiting for the guests with his unique temperament. Above Hawking's head, a sign reads: Welcome time travelers.
So if there are really time travelers in this world, they should know that this banquet is for them, why not go and enjoy the feast? Isn't it something worthy of bragging that people in the future will be lucky enough to meet this legendary scientist who has passed away?
Just like if we could go back in time and meet Newton now, that would be an awesome thing.
There are time travelers who can go there now, and there will be such time travelers in the future. Due to Hawking's reputation and piety, if there are time travellers, they can still go there in 10,000 years.
Afterwards, some people attributed the failure of the invitation to Hawking's failure to send out the invitation in time. The invitation to attend the Time Luncheon was not sent out until after the banquet.
These people have not understood at all what kind of party this is. This is a party to invite the future, a party to invite future travelers. We have now come to the future. You know and I know, and we still need Invitations?
And this is a scientific baggage thrown away by the wise Hawking. This baggage can only be solved by people in the future, so only people in the future can keep the appointment.
For example, if I had the ability, I would definitely go to this legendary figure for a while, enjoy some delicious food and drink a glass of champagne. Why not?
It’s a pity that no one came. This may be Hawking's original intention. Without a time traveler, the future can never return to the present, and it is impossible to return to the past now.
This is inherently a paradox.
If people can go back to the past, they will affect or change past history. Since history is not past history, then how can the present be the present? How can the future be the future of the future?
In this case, how could there be that person who came back through time?
In fact, it is not so cruel and bloody. Going back in time, stepping on an ant and peeing, has also changed history. Today is not today. Whether or not you are there today, I will say something else. .
So time travel is complete bullshit.
Of course, the luncheon at this time is also very meaningful. Hawking said: "I came up with experimental evidence that time travel is impossible. I threw a party for time travelers, but I didn't send the invitation until after the party. I waited a long time, But no one showed up"?
He did it, proving the impossibility of it, so it wasn't a gimmick at all. No one really appreciated him and confirmed his conclusion.
For example, at the age of 65, he was completely paralyzed and could only move two fingers. After staying in a wheelchair for 40 years, in 2007, he got on an airplane and experienced near zero gravity at an altitude of 10,000 meters. (weightlessness) experiment.
When he was nearing the end of his later years, he took the lead in teaming up with some scientists and business leaders to launch the famous Breakthrough Star Photography and Breakthrough Listening programs. This was an astonishing initiative to explore space and search for extraterrestrial civilizations.
His popular science masterpieces such as "A Brief History of Time" have inspired and guided thousands of people who love science. His research on black holes and the origin and evolution models of the universe is unique in the scientific community.
That’s it, discussions are welcome.
Time travel is impossible. Assuming that time can travel, you travel to five minutes ago and shoot yourself to death with a gun. You were dead five minutes ago, how did you get here now? Some people explain that it is a parallel universe. There are no parallel universes. When you take a forked path and you choose one of them, you will not be on the other path.
The time travelers are busy arranging their assets and have no time to attend this banquet which is a waste of their own time and can only bring fame to Hawking