The concept of time travel is not that new to us in fact, we are obsessed with this idea and because of that, there are numerous fictitious novels and movies about time travel that has been published and released. Some of which are the movie; Lucy and an American TV series; DC’s Legends of tomorrow.
Many scientists, mathematicians, and inventors have been trying to solve and understand the possibilities of traveling in time from either present to future or future to the past. Well, it will be a fascinating discovery if we will develop such technology that can travel back and forth in time. The question is how? What is time travel anyway? And, is it possible?
In a very simple sense, time travel is possible, we, together with other things on earth were already traveling through time and space even from where you are standing right now, only that we are traveling forward and never backward. But what if, we can travel back in time? Will it be possible? Or will it affect the present and future time? The answer is unknown because no one, well at least no one from those who claim they travel through time has ever presented acceptable and provable evidence of time travel.
Scientifically, we travel into the future at a constant rate of one second per second but if you want to travel back in time, you’ll need to move faster than the speed of light according to Einstein, so, you have to travel higher than 299 792 458 m/s or you can jump into wormholes, a tunnel that connects one point in time to another.
According to some theories, there are types of space motion that can allow you to travel back and forth through time but for this to be true, a closed time curve (CTC) is required. Remember the wormholes I mentioned? CTC is a loop in space-time that hypothetically allows any object to travel to the past. The problem is that according to some theories if you travel back in time and tried to change anything that happens to your life in the past then, theoretically speaking everything will change including bad changes or it will only create time loops and will never change your present take the grandfather paradox for example.
Einstein theory of relativity
According to Albert Einstein in 1905 and 1915, time is and space is linked to space which he then explained time dilation, which shows how time is being measured along different trajectories which are affected by differences in velocity and gravity thus that time is moving relative to the observer. An item in the movement suffers a dilation of time, which means time advances slower if one moves than if one stands motionless. If you want to understand more about this concept you can watch the movie Interstellar. The concept of Einstein's theory was used in that movie.
There are still more concepts of time travel that you can find through the internet so I'm not writing them all here. With all concepts, theories, movies, and technologies we have today. Even if it is possible to travel in time, one thing is for sure, we can naturally travel into the future so don’t make it fast-forward because life is more exciting in normal time, do not wish to change the past because without it we are nothing, change your future by changing your present instead because just like what Einstein once said; “Everything is relative” that means a simple change in time will cause lots of changes in the future. Well in much simple sense, the moment you showed or perform time travel will cause a change.
