What is time, and Time travel?

We are discussing the most confusing subject, time. So what is the time? How possible is time travel? How can one say that time and length are also quantized with space, as like energy?

In this video, we are discussing the most confusing subject, time. So what is the time? How possible is time travel? How can I say that time and length are also quantized with space, as like energy?

• Time travel
• A return to the past
• Moving back to a time
• Moving to the future

According to me, “time” is an important thing in the universe and our daily life. Here I am trying to point out my observations about time. Time is always accompanied by force (energy). Everything in the universe is under time even if it is at inertia (because the universe is expanding uniformly). Time in the present universe starts with the big bang, I can surely say that there was a time that existed before the big bang too. But here I consider saying time starts with the big bang and I am taking that as the original time. Because the expansion of the universe starts with the big bang and we are living in the expanding universe. The big bang gives a new start to everything. Once the time is always traveling with the force, time is with the expansion of the universe. At each and every point in the universe, we can find a time according to the big bang. At any new junction, it can create a new time by its motion, but the original time remains with it as the information. 

When I was in school, the time has used as just a measurement to calculate the velocity, acceleration, and some other properties of force. But now time is a complicated subject for me and physics. People have different ideas about time. Let’s see the journey of time. If the time starts with the big bang, at a certain point after the big bang our sun was created in space-time. I am avoiding all the other incidents, to shorten my theory. At the birth of the sun, it starts a new time itself, along with the original time (big bang oriented time). Now we can see two types of time in the sun. Then the earth was born after a long period and has started a new time by itself. I was born on the earth and I started counting my hours and days according to my birth time. So I have started a new time for me but always the original time remains there as unchangeable. Here we can say time can be curved by an applied force or energy. It is already explained in the general relativity theory of Albert Einstein. we can see my logic in this picture.

Picture: Curvature of time in a flexible space. In the below picture, two masses (A & B) are starting to move from the same point at the same velocity, in space-time. After traveling a certain distance, at a point (R), the mass (B) has been forced to change its direction by an applied force. It starts a new time, and the original time from its starting point is getting curved with the new time. The mass (A) is moving in a straight line with the original time. So the mass (B) is deviating its direction and moving to some other parts of the space, where the space-time may be different. It can be in the future or in the past or with the original time, according to space-time. Here I just want to explain, how space-time is flexible in all its dimensions and how it can allow curving itself by a mass. By this picture we can see that, how flexible is time in all the dimensions of space.

Here I would like to add another observation about time with the help of an example. Here we can imagine that three friends are throwing three balls from a junction. They are throwing it with different velocities, in the same direction. These three balls must have reached other junctions at a fixed time interval, but they are traveling with different velocities. So they will never reach the destination at a fixed time. The original time is moving with them equally, but the time according to their motion varies at each junction.  We can say if it reaches the destination with the fixed time for the motion, it is traveling with the original time. The rate of flow of time and rate velocity is equal. We can call balls A, B, and C. Ball B is traveling at the allowed velocity to reach the destination, A is having a velocity greater than B, and C.  Ball C is traveling with less velocity than B. According to B, object A is traveling into the future and C is in the past. So here the three friends are applying three different forces on the balls. Here the time taken to reach each junction for these three objects varies according to the applied force on it. If we apply Sir Isaac Newton’s laws of motion here we can say that the force applied by your friends on the balls, will lead it to infinity.  If there is no external force to act on the balls, the motion will continue to infinity. When the balls are quantized with the energy, time also starts with it. I think that by this vision Albert Einstein introduces us to space-time in his theory.

Picture: Time Travel. The picture illustrates how we can understand time in three different contexts.

Can a Time Traveler control any incidents???

Time travel

Time travel is all-time hot stuff in today’s physics and science fiction. Some days ago one of my friends asked me about that and his question was this, “Do you think time travel (to a place that was once in your past) is possible?” Naturally, I shared my thoughts with him like a simple sentence as “One can move back to the information, but can’t recreate an incident”. Now I would like to explain more about my thoughts and what makes me feel like this. Science fiction and some other theories state that one can move to the future and can change the incidents which are about to happen. Or one can move back to the past and recreate an incident that already happened. So here I am writing about this topic. To explain more on this topic I have to brief here about my concept on ‘time’. 

A return to the past

In cinemas, we can see that they are moving back to the past easily and we can call it a flashback of the story. But in fiction we can see at a more advanced level, one can move back to his past and interact with the incidents which already happened. I am also happy to see this. Now technology is advancing very fast and we can hope for it to be true. But in my mind, I am not satisfied with this concept. My opinion is the same as that which I told my friend, that one can move back to his past or anything else’s past and collect information on that period. Even the particles which are absorbed by a black hole are leaving the information about themselves on the event horizon. We can collect information from anywhere in the universe. Information is like energy, it can’t be destroyed. Now in our advanced technology one can easily retrieve the lost data from his computer or phone. They all are stored as information in the device. So we can recollect information and cannot recreate an incident.

Moving back to a time

Moving back to the past defines that you are moving back to the time. So time is playing an important role in this concept and the definition of time is one of the most important questions in present physics. Everybody has their own opinion on this topic, some say time as a dimension, some say time as an illusion and some have other opinions. I would like to consider time as a good fellow traveler with energy. The original time of our universe starts with the big bang and can create a new time according to the incidents on the journey, but the original time remains the same.

 Here we can say that the information will remain with the original time. Imagine that now you are in your city with the original time presently and you have to move back to an incident in the past ten days ago. Your city cannot go back to the past because it is constant and must have to stay with the original time. To recreate an incident, the earth will never run back in its orbit. So you will never get the platform of 10 days ago. There you can only collect the information 10 days ago. You can move back to the spot, but it will never be like 10 days ago. Here I realize very sadly that, if I want to move back to the past, I can do it but I cannot meet my father there. I can only collect information about him. Imagine that I have to travel on a train which departs at 4 PM from my station but I have reached the station after the train departs. In this situation I can’t travel on the train, I can have the information that the train departs.

All these situations are well described in my book, the key to the secrets of the universe. You can see the evolution of the universe from the primordial stage until the destiny of the expansion of the universe in my book. There you can see a lot of new ideas on the expansion of the universe and about gravitational interaction. I am explaining there, how the expansion of the universe is undergoing another big bang. You can find the link to the book in the description box.

Moving to the future

Everybody loves to know their future. If I can know the future I can prepare for it and I will be able to alert on it. If a time traveler moves away to the future of the earth and knows that some incident will happen in two years and return back to the earth. He can have the information about the incident only, the incident will happen only after two years. Or if he continues his travel to the future, he cannot be present to that incident. Or if he waits there to reach the earth to that point, he can experience the incident. If we examine the concept of time travel in more detail we can come up with some other amazing ideas. Once we know what happened in the past or what will happen in the future, two possibilities open up before us. Just as there are some events that we can defend ourselves against, there will be some events that we cannot defend ourselves. For example, as I said earlier, if we know it is going to rain, we can keep an umbrella with us. But we can not stop the rain. We will think of another situation. Suppose you already know that an earthquake is going to happen in the place where you live. You will escape with as much stuff as you can. From this, I learn that some fundamental characteristics are always consistent. 

I can explain it more simply. Imagine that you are a time traveler from the future and you have to travel on a train which departs from your station at 4 PM. As a time traveler from the future, the train will not come for you before 4 PM. The train will depart from the station at its own time. The train is not willing to depart from the station for the time traveler. Or in other words, imagine you are not a time traveler, but you know that the train will depart at 4 PM and you arrived at the station at 3 PM, the train will never leave from the station when you arrive. Imagine that you are going out of your house for shopping or something else and you check the weather updates. The weather shows that it will rain after some hours. In this situation, you have the information about the future and you can have an umbrella with you. You only have the information; you are not allowed to control the incident (you can’t stop raining). So you will take precautions against the information. This is what happens in the time travel stories.

We have scientifically proven that the concept of time travel is possible. The Delayed Choice Quantum Eraser experiment with quantum entangled particles proved this to us. When a particle splits in two, those particles are called entangled particles. To make it easier to understand, let us compare these to identical twins. This is a double-slit experiment with such particles. In this experiment, we divide the particles that pass through the slit. Particles that are thus divided, we receive in the screens located in two different places. The first screen is placed in the normal way. The second screen will be slightly further away from the first. But with that, we fix a detector to detect particles falling in it. The test results are the same as for a standard double-slit test. These particles exhibit particle behavior when the detector is on and wave behavior when it is off. Here the concept of time travel is experimentally proved by the distance between the screens. Only by knowing in advance whether the detector is on or off will it be possible to determine whether the particles falling on the first screen should exhibit wave nature or particle behavior. For that, the information has to be transferred back in time as the particle lands on the second screen. 

How can I say that time is quantized with energy and space?

In a Photon, energy is distributed as small bundles of packets. We are calling it “quanta” of energy. The idea was introduced by Max Planck and used by Einstein to illustrate the photoelectric effect. Now suppose an atom inside a layer of metal lying somewhere around near to us on the ground as a closed system. Imagine that a photon enters into this system(atom). An electron inside the system absorbs it, and if it receives enough energy from that photon, the electron becomes free from the atom. But here we are always talking only about energy.  Here I wish to think about the space around it (under its influence). In the General Theory of Relativity, gravity is perceived as the result of a reaction between space and energy. In my Idea, each quanta of energy is holding the same amount of space with it. That is, the energy is exerting its influence on space is the same everywhere. We can imagine this energy and space under its influence as a system. So if there is a space with energy, there will be a distance in the space. If you want to cover this distance you must need some time. Suppose we add one more quanta of energy to the system. It will add the same amount of space to the system. While adding or removing space to a system, automatically there is an increase or decrease of distance and time. That is, time and duration are distributed step by step along with energy. Quanta of energy can have a certain amount of space of its own. That space will have its own length and time. Here we can say that space is also quantized because energy is quantized. Time and length are located within the quantized space. So we can clearly say that time and length are also quantized.