Have you heard the phrase that says, "Time
Is like a River, You Cannot Touch the Same Water Twice Because the Flow That
Has Passed, Will Never Pass Again."
Those are beautiful and true
words.
Have you ever heard of the
‘Grandfather paradox’? It is an example where you enter a time machine, travel
into the past, and kills your grandfather. If you manage to kill him, you
grandfather that is, as a consequent you will never be born. If you are
destined to never be born because your grandfather is killed, then how where
you were born in the first place? This is what we call the Grandfather
paradox. Luckily, it has already been solved.
Let's pay attention to this sentence:
"Time is like a river." Now, it is time to answer that
paradox. Shall we begin?
Tommy goes into his past and kills his
grandfather. After killing his grandfather, he returns to his current time.
What actually happens to his time?
The answer is nothing really happens. If
at his current timeline, his grandfather is still alive then he is still alive.
His grandfather will be the same as before he goes into the past and kills his
grandfather. So, what actually happens?
Actually when he goes into the past and
kills his grandfather, then at that time, the river of time splits to
two paths. One
time is the current time that Tommy is living in and the other is the alternate
timeline. A timeline or a parallel world where you do not exist starts to
appear. That alternate timeline world appears the moment Tommy kills his
grandfather. In this way, no matter what you do when you are in 'time
travelling' mode, nothing will happen to your timeline. Also, a paradox will
never occur to your timeline.
The conclusion is, travelling
through space or between universes might involve the dimension of time. The
relative age of the person travelling might change drastically when compared to
the age of the people of the person’s origin.
It might seem ridiculous but time travel is possible according the Professor
Albert Einstein’s theory. Professor Stephen Hawking, initially did not accept
the idea of time traveling. But he later changed his mind and accepted that
time travelling is possible. Time travelling is not easy. If you travel with a car,
you need gasoline, in other words, energy. For you to do time travelling,
massive energy is needed. Perhaps, we can canvass the energy from the stars.
Reviewed and Corrected by :
Prof.Mohd Isa Mohd Yusof,
Senior Lecturer,
Centre of Foundation Studies,
Aras 5,Bangunan FSK 1,5
Universiti Teknologi MARA,
Cawangan Selangor,
Kampus Puncak Alam,
42300 Bandar Puncak Alam,
Selangor,
Malaysia.
