Time Travel Theory – Is Time Travel Possible?

Is time travel possible? The problem with time travel is the ‘Time Travel paradox’ which goes something like this. Suppose a person travels back in time before birth and breaks a link in the time chain that led to the traveler’s birth. This problem has been commonly explored by asking the question ‘What if you killed your own grandmother before she first conceived?’ (Why the time travel paradox is never expressed in terms of killing your own mother, I am not sure, but it isn’t). If you kill your grandmother then you would not be born. If you were not born, then you could not travel into the past, in which case you would not kill your grandmother. If you did not travel back in time to kill your grandmother, you would be born causing you to again travel into the past to kill your grandmother…with me so far?

The laws of physics seem to allow the possibility of time travel to take place. Many physicists believe that there would have to be some kind of constraint that would make time travel impossible.

Albert Einstein thought that time travel was a very distinct possibility. His idea was that, theoretically, the closer we come to traveling at the speed of light (186,000 miles per second), the more time would appear to slow down for us in relation to someone who was not moving. He called the slowing of time due to motion time dilation.

Einstein came up with an example to show the effects of time dilation that he called the “twin paradox.” The paradox basically states that there are two twins. One twin travels to a distant location at the speed of light, while the other twin stays on earth. For the twin that traveled, time slowed down, while time stayed constant for the twin that remained on earth. Upon returning the twins were no longer the same age. The twin paradox and time dilation actually supports the theory of time travel into the future.

The twin paradox theory was actually proven in an experiment in 1971. This time experiment used two atomic clocks which started off reading the exact same time. One clock was placed on a jet that traveled around the world at 600 mph, while the other atomic clock stayed stationary. When the jet landed, the clock that had gone around the world was behind by a few billionths of a second.

So what about time travel into the past? The basic features of quantum theory actually allow for the possibility of time travel into the past and that the paradoxes raised by the equations of Einstein’s theory of relativity never come into play. The theory is that quantum objects split their existence into multiple component waves, which follows a distinct path through space-time. Quantum theory allows for time travel, because nothing stops the waves from traveling backwards in time. If you travel back into time using quantum mechanics, you would only see those events that were consistent with the world you left behind.

Time travel is an interesting theory to say the least. I leave you with this thought on time travel. If one day someone knocks on your door and says that they are a distant relative of yours, you might want to think twice before you close the door.

Time Travel

Travelling from 1972 to 1942 or travelling from 2009 to 2042 just like travelling from New York to Washington DC. A lot of street plays and cinemas such as ‘Back to the Future’ have built a lot of plots that revolve around time traveller moving from one time zone to the other. Is it really possible? If yes then, how?

The idea revolves around relative time experience of two travellers one who stays back on the earth and the other who travells inside a space craft at nearly the speed of light. The theory suggests that the time experienced by the traveller would be different from the time experienced by the person on the Earth. So in effect the person who experiences 50 years on the space craft will see that 400 years have elapsed on the surface of the Earth. So in essence he has travelled time or has travelled to the future. (Time dilation)

The assumption that is questionable in this theory is whether aging which is caused by meta physical phenomena will also be influenced by time dilation or whether time itself is more universal as per which a person will age rather than relative time which causes a persons motion into the future.

Atomic clocks have shown to experience time dilation when one is accelerated to near light speed. So can one travel to the past?. Travelling to the past is unlikely as it will affect the principle of causation. This is the famous Grandfather paradox where a traveller when he travels to the past could stop his grandfather from getting married to his grandmother. In this case can he exist now? This is explained by multiple universes, a universe in which he exists now and a universe where he does not exist( where his grandad and grandmom do not get married.)

Even great yogis such as Swami Yogandanda have verified that time travel is possible as some yogis in the past have disappeared as light and reappeared after eons and ages. So what we can see in the future is that technology being developed where a traveller will remain in motion for 10 years and return to the earth after 400 years and our future human civilizations will witness time travel after all!!

Time Travel/Adventure Templates

What is the attraction of Time Travel as a genre in writing? Is it the idea we can go back and fix our lives? Or the appeal of watching history unfold? Maybe it’s the concept that everything happens for a reason. Regardless of your “why”, you need a good “how” to make time travel a reality. Below are five examples of how you can make that happen. Don’t worry, none of them have to do with Albert Einstein’s Theory of Relativity.

1. Mechanical – Most Sci-Fi fans are familiar with automated time traveling. What do Dr. Who and Back to the Future have in common? They both have machines of some type that allows characters to go forward or back in time. This is by far the most common method writers use to get their subjects from point A to point B. The advantages are you don’t really have to explain the mechanics, just assume it works and continue with the story. The disadvantage is making sure you don’t sound like a Dr. Who or Back to the Future rip off.

2. A Natural Phenomenon – Relying on a natural phenomenon is a little different. TV series like Star Trek and Stargate use these a lot. This includes black holes, wormholes, and the ever popular, rip in the fabric of time. In these stories, time travel is not usually planned, it is something that is thrust upon the characters. Advantages are it is typically high suspense and makes a great plot twist. The disadvantage is they are usually harder to explain and often require space travel as another area to research. Examples of this include, A Wrinkle in Time and the show Sliders.

3. Hypnosis or Meditation – If you use hypnosis or meditation to travel in time, the characters own mind is doing all the work. Think of Somewhere in Time or Time and Again. This makes time travel limited to only those who have strong enough willpower. Advantages are this puts your character in charge of their own destiny. Disadvantages are the character must spend so much effort to maintain that reality, that any small detail can disrupt the adventure.

4. Sleep or Dreams РIf you use sleep or dreams this is a form of time travel happening to your character, but, less technical than a wormhole. Often used to teach someone a lesson. Think Rip Van Winkle or A Christmas Carol. Advantages are it can be excepted by more people, including children because it does not sound like Sci-Fi. A disadvantage is that it can be challenging to make a dream, not sound clich̩.

5. Magic or Enchanted Items start to blur the line between Sci-Fi and Fantasy. The Story of the Amulet and Harry Potter and the Prisoner of Azkaban both use items that are not traditional time machines. Advantages are you get to make up your own rules because after all, it is magic. Disadvantages include not all sci-fiction fans like fantasy and visa versa. Also, this usually involves more backstory that you must work in (the history of the item, how the character came to possess the object, etc.)

Most time travel adventures are character based, but the reader still needs to grasp how this is possible. Like knowing your setting, you also need to understand the mechanics of what you are suggesting. Are there other ways of writing a time travel story? I’m sure there are, but you as the writer need to have a clear picture in your mind before you try to share that vision. These are some of the more popular ways of writing time travel, think of them as templates, but don’t forget to make it your own.

Is Time Travel Inevitable?

Time travel has been a topic that has seemingly fascinated people for centuries. It has been written about in science fiction novels, made popular in blockbuster movies, and theorized in television shows. The concept is simple, it is moving from one point in time to a different point in time. In actuality, we’re all time travelers; we are slowly traveling into the future. Scientists have created many theories of how time travel could work. The most recognized theory is Einstein’s theory of relativity, E=MC2. In this theory, E represents the units of energy, m represents the units of mass, and c2 represents the speed of light squared. In a nutshell, Einstein’s equation theorizes that the closer something travels near the speed of light, the slower time will pass. There are many other well-known theories, which include wormholes and paradoxes such as: bootstrap, grandfather, and multiple universes. There are even theories that postulate time travel through out-of-body experiences, where one’s mind can leave their body and move into a different time and place. But for this argument, let’s consider physical time travel only. Let’s say at some point in the future, mankind creates a spaceship or machine that is capable of manipulating time by moving near the speed of light. Basically, at some point in the future our technology gives us the ability to bend time and space, and with this ability we are able to master the ability to traverse into the past and the future by controlling the length, width, and depth of space and time directed by the apparatus. By creating such a machine, you would be able to travel forward or backwards in time based on the duration and rate of speed traveled.

If this is possible, the logical assumption is that people from the future would travel back through time. Some of these individuals would likely visit the time that we live in. There are theories that speculate that time travel is scientifically impossible, but if an individual traveled to the past, their actions would alter history. Based on the rate of technological advancement that has occurred over the last 20 years (cell phones, computers, the Internet, etc.), one could speculate that anything and everything is possible, it’s just a matter of “time”. If anything is possible, then individuals are already using this device.

How could individuals from the future sending themselves back to our time or past not affect the past occurrences of our lifetime? First let’s assume the cost of building such a machine would be beyond the means of any individual or company. It would likely take the joint funding efforts of multiple countries. Therefore, the answer could simply be the highly regulated and controlled use of time travel. Coupling the ever-increasing pace of regulation and oversight on all aspects of everyday life with the use of a time traveling device, it would likely result in an environment where time travel is in complete and absolute control by a regulating body. This would ensure history is not altered. Under this assumption, time travel would not be viewed as a possibility, but as an eventual reality.