I am a sci-fi fan and I love speculative fiction, especially those that deal with time travel.
Many of us are fascinated by time travel and the possibility of shuttling back and forth to the past or the future is a dream that we can only wish for. Who wouldn’t be enthralled by going back to the past or seeing the future?
But time travel seems to be possible only in the realm of our imagination – or in most cases, in science fiction literature, from “Back to the Future” to “Star Trek” to “Doctor Who”.
Can time travel really be possible?
Science fiction is a world where impossible things can become possible and that’s the reason why it is also called speculative fiction. But science fiction is not entirely fiction since it is based on science theories and principles.
Time travel, for instance, is a theme used by sci-fi writers with such familiarity; readers may sometimes think writers have first-hand experience of it.
I have compiled some of the popular ways by which time travel is made possible in fiction books:
- Through the wormhole – It is a shortcut between points in space-time. According to Einstein, an object can pass through this if it can travel at the speed of light with infinite mass. An example of a wormhole is described in the novel, Riddle of the Red Bible, by British author K.T. Jae.
- Through a black hole – A black hole is a vacuum in space where light cannot even escape or pass through. In some sci-fi movies, like Star Trek, black holes became the means to travel through time.
- Cosmic string – These are regions in space with huge amount of mass enough to warp the space-time around them. According to theories, two strings that are parallel to each other can bend the space-time close enough to make time travel possible.
- Through time machines – In fiction, time machines are complex vehicles that can travel faster than light. It can be an exotic and intricate vehicle like TARDIS in “Doctor Who” T or a specially-modified car like the one used in “Back to the Future”. But first to be able to time travel, these special vehicles would need a wormhole.
- Parallel universe – Another popular way to travel through time is to be able to slip or slide into a parallel universe where one can go back to a point in time and see a different reality.
Though we know time travel may not be possible, it still is an entertaining subject for most of us. And in science fiction, where reality is always in the imagination, time does not really matter.