Einstein and Time Travel – His Theories

Relativity Formula



Welcome, and I am very happy to have you here again today 🙂 and talk to you about Albert Einstein and time travel.

Let’s have a look at the scientific part of this subject of time travel. Do you think time travel is just fiction found in movies, books, and games, or could it be a future reality?

We have had some great minds of the century some offered theories, one of them being by the physicist Albert Einstein. So, talking about Einstein and time travel let’s try to understand his theories.

I know it is not a very simple subject but I also think many of you would like to know his ideas, so I will try to explain them as clearly and as simple as I can.

I am not a physicist myself so let’s see in simple terms what Einstein proved with his theories.

Albert Einstein



The Theory of Special Relativity

First of all, Einstein proved that time is relative; a very different opinion from Newton who claimed that time is absolute. But which one was right? How did Einstein sustain his theory?

His theory says that when you move through space-time at the speed of light, time goes slower for you than for the others.

For example

Travelling with a very fast spaceship, one person would get older by only a few days whereas another who is on the earth, by month or years.

It is said that the faster we travel, the slower time passes.

In 1905, Einstein explained in this theory time-space as a fourth dimension.


 To prove this theory, in 1975 Carol Allie made an experiment at the University of Maryland.

Two clocks were synchronized and one was placed on an airplane and another in the laboratory.

When the clock that was placed on the aircraft returned after a few hours of flight, it was seen to be a fraction of a second faster than the clock that remained in the laboratory.

Ok, this is an experiment on a small scale, but what if the clock was placed on a spaceship that flew at the speed of light?

Einstein claims that for a time travel journey to be successful, you would need to be able to travel at the speed of light.

So according to his theory, Einstein claims that traveling at a speed close to the speed of light will slow the time, reaching the speed of light will stop time and if it will be ever possible to pass the speed of light, time will reverse.

General Relativity – Einstein’s Theory

 Another theory of this great physicist was that time passes slower for objects in a gravitational field than for an object which is far from such a field.

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So here we have black holes, where the gravity is intense.

Kip Thorne (University of California) claimed that wormholes do exist in space and that they are shortcuts to the past. If two wormholes are connected, it could make a passageway to the past or future.

Of course, the concept of gravity was discovered by Newton, but Einstein was the one who explained what causes the gravity. He said that stars and galaxies bend (curve) space and time, so gravity is a bending of space and time.Sun Eclipse

His theory was confirmed in 1919 when during a solar eclipse, astronomers measured the curving of starlight around the Sun.

One more time in 1922, during another sun eclipse confirmed Einstein was right and he became famous worldwide.

Even today flights are based on his theory.

Researchers today say that they have detected gravitational waves coming from two wormholes that crashed together, located at a distance 1.3 billion light years away.

Physicists say that it is difficult to succeed in time travel because, in our world, the laws of physics are not pushed to the limit, but if we could break these rules, time travel would be possible.

Breaking the Rules

Many physicists have tried to violate Einstein’s theories or to ‘break the rules’.

Marian Scully, Lijun Wang, Gunter Nimtz, and Alfons Stalhofen are some of those names who claimed that they have succeeded in violating these theories.

The last two, at the University of Koblenz, transmitted photons at a speed faster than the speed of light, so the photons traveled into the past.

I will not write about each one because it is pure science, physics, and calculus. It would take a mind such as Einstein to understand it.

Based on Einstein theories, the novelist H.G. Wells wrote the novel ‘The time machine’ and physicists think that he was really onto something.

Relativity Formula

Einstein’s equation E=mc2 proves that time travel into the past is possible theoretically and scientists say that if it is still impossible for us to put this into practice, it doesn’t mean that time travel is impossible.

Stephen Hawkins says about Einstein’s theories, that to travel with a speed faster than light is almost impossible, at least in our world, and if time travel will ever be possible the past will make you stop.

The laws of physics are made not to allow us to change the past.

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Now, what to think?

Reading so many different opinions I can understand just one thing. Time travel is possible but we need a more advanced technology to break the laws of physics, to use gravity and travel at the speed of light.

Does the past want to be changed?

I understand that it would be really fascinating if we could do this, but maybe this is too much?

David Lewis gives a good example of this talking about compossibility and the ability to change the past.

It is true that changing past events would have many implications, and practically it is impossible.

Lewis gives as an example

Tim, a man that hates his grandfather wants to travel into the past and kill him.

Would it be possible?

If the grandfather is killed when he is young, this would mean Tim’s parents would not exist, so Tim would also not exist to kill him.

If for example the grandfather normally dies in 1993 and Tim goes back to 1955 to kill him, would he?

Considering the present and that the grandfather should live for Tim to exist, (I will not confuse you more), Tim will be stopped from the past to succeed in killing him.

Lewis’s conclusion and exact quote is:

‘Tim doesn’t but can because he has what it takes ‘(clear shot, daylight) and also he believes that if Tim finally tries to do it, everything will stop him, a bird will fly in front of him, the gun will jam or he will just fall every time he will want to shot his grandfather.

This paradox can also be seen in many films.

So what is your conclusion?

Reading all these theories and ideas, what do you really think?

Is time travel possible only theoretically, or if we push a little bit harder on the laws of nature, can we do

I would like to know your opinion and if you have any questions just ask.

I look forward to hearing from you all and thanks for reading.

For more reading and viewing click below



Cristina Boros
I have always been interested in time travel. From a very young age I was forever watching movies that would take me back in time.

I would love to hear from all of you who are also interested in this subject. Movies? Science? Book? Literature?

Whatever your interest is, I would love to meet you.


  1. George

    Hi Cristina,

    I just bumped into your site. That is a very informative and quite interesting article on time travelling.

    So many historical personalities delved into the matter, many of them you mention in your post.

    Humans are extrordinary creatures when and if they want to so I wouldn’t be surprised if that became a reality in the future.

    I hope I am alive to experience it.


    1. Cristina Boros (Post author)

      thanks for reading and i hope too, one time will see it real. i am the first to try :))i fell we are close

  2. Sri

    Hello Cristina, appreciate your post and very exited to read about Travel travel theories. There is nothing impossible and if the scientist put full focus on law of nature theories, we can achieve the time travel goal. However this technology should be limitedly used for example to see our earth some 5000, 10000 etc years back and future as well like year 5050. Awesome to imagine this. However all the best! Thanks

    1. Cristina Boros (Post author)

      thank you for your reading and of course, if will ever be possible time travel should be used for very good reasons:)Thanks again and soon, more articles will bring the news:)

  3. Dave

    Hi, I loved all the science. I took time to view your video. It was interesting and I learned some information I didn’t know before.

    Traveling in time is an intriguing idea. On the one hand I would like to see time travel become a reality. On the other hand changing time could be a problem.

    One of my favorite books is The End of Eternity by Isaac Asimov. Thanks, Dave

    1. Cristina Boros (Post author)

      thank you for reading. yes I think you are absolutely right if it will ever be possible time travel, i don’t think is a good idea for everyone to be able to do it .about the book i will read it and i will tell you my opinion:) thanks again

  4. Chris

    I just watched 12 monkeys and time travel is one of my favorite genres when watching TV shows and movies. I also watched a documentary of Einsten’s life and I got a gist of his theory of time-space, but still I cannot get the bending and the solar eclipse experiment. But I did enjoy the documentary. Honestly, if I could change the past, I would but my senses are telling that it is very far from reality, and may not happen in this lifetime. That is why I enjoy entertainment about it, so at least I feel contentment. How about you? How do you feel about time travel?

    1. Cristina Boros (Post author)

      to be honest, I think is possible but not for everyone. It is still researched and i think that if we don’t know yet the way to do it , the ancient civilization sure did. and there are proves that there are time travelers but coming from the future . thanks for reading and I am glad that you enjoy it 🙂

  5. Bob

    Hi Cristina,I myself believe in time travel and think Einsteins theory is right on.I enjoyed your article very much, thought it was very interesting.Nice job

    1. Cristina Boros (Post author)

      me too, to be honest, I believe. This is the reason i write about it and I search so many things, I am glad that you enjoyed it and stay around, 🙂 i will write more articles and I hope you will like them:)

  6. Albert

    I am seriously mind blown right now. The experiment you mentioned back in 1975 is awesome! I would like to know if they have done anymore like this recently with faster planes. I agree that we are bound by the laws of physics, but i really think that we can get over it with technology advancing more and more everyday!. I enjoyed reading this article!

    1. Cristina Boros (Post author)

      i am happy that you enjoyed reading my article . i think experiments are done every year and the technology advances day by day but as soon as i know about something new… i will write about :)) i am sure in a few year you will have big surprises about faster planes . thanks 🙂

  7. Gabe

    This is the most interesting article I have ever read in my life! Ok so in my opinion, I believe that time travel is possible, maybe not in our lifetime but it’s definitely possible. I mean just look at how far we’ve come over the past 15 years. Now I know that in order to travel to the past or to the future you have to travel faster than the speed of light, which is time in space.

    I believe in time that we will eventually be able to live on multiple planets as technology and our resources get more and more advanced. Great article!

    1. Cristina Boros (Post author)

      I also think in the future we will leave on other planets 🙂 It is also planned to colonize Mars so..it is not too far:)

      Do you think not in out life time? Maybe, who knows:) 

      Thanks for reading and if you want to know more there are plenty of articles on my site so..have a nice time and if I can help , ask me anything:)


  8. Arie

    Interesting read! I was never 100% sure if I believed in time travel being real, but, I generally do enjoy hearing other stories and theories about that!

    As far as Albert Einstein goes, I probably should learn more about him, as he seems to be one of the smartest men to live.

    One thing I was not aware of was that the speed at which we travel impacts the speed at which time progresses!

    His theory on going at the speed of light has me wondering, would this send one towards the future or the past? And would there be a deciding factor in terms of how far beyond or backwards in time?

    I am also somewhat curious to know how he came up with this theory. Do you have an opinion on this?

    1. Cristina Boros (Post author)

      Hello there:) Arie

      In Einstein’s opinion based on his theories time travel can be done in the future is we travel with a speed faster than the speed of light. Not in the past.How he came up with it? He came up with this idea in 1905 , 200 years after Newton wrote about the law of motion.he publishes his theory in 1915, after ten years of studies. So hew exactly came up is a long story and I will write a post very soon stay close:)



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