Time Travelling: Is it even possible?

Time Travelling has been an eye-catching topic for a long time, especially in the sci-fi fantasy genre of literature and filmography. Even the simple thought of it brings joy to the soul and excitement in all the nerves all around the body. The sheer idea of being able to go back in time and experience the greatest moments in history before your time, or relive your best moments, or even correct the mistakes you made. Or to be able to jump into the future, and experience all that is yet to be when it hasn’t even been in your own time. All this from just pure imagination. I say imagination because, as glorious as it may sound, the possibility of time travelling is, least to say, unachievable, at least for now.

Don’t get me wrong, I’m absolutely flattered by the prospect of time travelling just as much as the next person, but what I’m saying is I just don’t really see our current generation and the next few generations of humankind making time travel possible. Obviously, there have been a lot of research regarding time travel and parallel universes, the two most hottest and interrelated topics of Science, mostly among teenagers and young adults of today’s generation. But what is it that makes time travelling so hard and almost unachievable? To start things off, let’s first understand what is required for time travel. Let’s forget quantum physics and wormholes for a while, and look at the basic script. According to the study of one of history’s greatest minds, i.e. Albert Einstein, time travelling requires the traveler to travel at a speed greater than the speed of light, which is 3 × 108 m/s. But it has also been deemed that we cannot travel at the speed of light. In Einstein’s General Theory of Relativity, he has explained that as an object moves faster, the mass of the object increases and its length decreases. Thus, at the speed of light, the mass for the object would reach about close to infinity, but its length would go down to zero, which is unrealistic. So, without being able to fulfil the basic requisite of time travel, it is impossible for humankind to be able to make time travelling possible.