Is Time Travel Possible?
This is a question that worries every curious person. If the meanings of the words are considered then we are traveling all the time. 🤣
You were a child, young, and then turn old. So basically you traveled in time. Right?
You watched many movies about time travel where a passenger comes from the future to meet his parents (those who are not married yet) before his birth. He meets his father as his friend and helps him to marry his lover who hates him.
In childhood, if you watch American Computer-Animated Tv series, Jimmy Neutron, in which he makes Chrono Arch, a Time machine, to travel in future with his friend but when they go in future they were unable to come back because of their old age, but jimmy's dog, Goddard push them in Time Machine and they go back in past. And, at that time you want to time travel because of these time travel tv shows or time travel movies fever.
Anyways, If you have fond of time travel but do not know how to do so, Today we will tell you about this. Let us answer your questions.
Is it possible to go back in time?
Can we go back in time and correct our mistakes?
Is time travel Theoretically Possible?
What Happens if gravity disappear for 5 seconds?
Why Time Travel is not Possible?
Suppose you grow up to be a physicist and build a time machine. You go back in time and kill your grandfather before you were born. So if your grandfather will not be born and you will not exist. So how is it possible that you exist or not? In physics, it is called the Grandfather Paradox. Some physicists solve this paradox with the existence of a parallel universe. But this solution will be explained in another article.
In addition to this paradox, many other paradoxes may emerge. Suppose you get married and you have a lovely son, who somehow travels back in time. The baby grows slowly and gets married. This child who came from the future is you in the past. So how is it possible that you are both your father and your son?
Let's look at another example. You are on your way when a bullet wounded person gives you a book. Before he can say anything, he dies. You read a book about building a time machine. You make a time machine by reading a book and want to go back in time and return the book to that person. suppose you go back in time, you were shoot by someone. You are about to die when you see a child. You give him that book and you die. That child is you in the past. But from where did the book come that you give to you in your past from your future?
This paradox is called the Predestination Paradox. In which time moves in a closed loop and you travel from past to future and then from future to past.
We do not yet have a time machine that can tell us whether time travels in a closed-loop or a parallel universe exists. Nor do we have any evidence of a person's future.
Time Travel Possible by Stephen Hawking?
Time Travel and Stephen Hawking
Stephen Hawking came up with a plan to unravel the secrets of time travel. He organized a party. The party was only for people who were time travelers. The party has kept, even Stephen Hawking did not send an invitation to anyone until the party is over. As soon as the party was over, Stephen Hawking printed an invitation card and invited people to the party who had long since passed away. Stephen Hawking believes he has a party for time travelers. That's means he organized the party first and after the party, he gave an invitation. He believed that if there were a time machine in the future, they would accept his invitation and join his party. The party was to start at exactly noon. Everything was already organized. Stephen Hawking's eyes were on the clock, when time started Stephen Hawking start to watch at the door through which the time travelers were to arrive. Hawking's party was over, but no time traveler came to his party.
He then said "I have experimental evidence that Time Travel is Not Possible" but in his book "Brief Answers to Big Questions" he also wrote that notion of time travel was a "very serious Question"
Also check: What happens if sun suddenly disappear?
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