Physics

ONTOLOGICAL PARADOX

ne has the ability to choose from the multiple patterns of lives with the chance of being embedded in one of the possible past-future pairs (Santas 39). The possibility of breaking out of limitations of only being able to exist in the present has led to many depictions of possible situations where human beings are able to freely move through the past present and future. Obsession with changing the past has not been limited to popular culture but has also featured in academic field such as physics and philosophy. This essay argues against the notion presented by some physicists and philosophers that one can travel back into the past to change based on the inconsistencies of time travelling.
In this kind of fantasies, many tend to perceive an instrument such as special machine that will facilitate the backward time travel, think of a special machine which will enable man disappear from one place and time and reappear at a past time in a different or same place. There is a philosophical line of thought based on the existence of what is called a closed timelike curves (CTCs) discovered by philosophers and physicists working on time travel. CTCs are curves in space and time which provide possible paths of bodies to move through various universes. The model containing CTCs was discovered by Kurt GGdel in the 1940s and was believed to be models of the Einstein field equations (Seaman and Ssler 141).
Based on model, Godel makes a theoretical assumption that it is possible for one to travel and come back at the exact time and place by making a round trip on a rocket ship in a suitably wide curve. This means that the object will get back to its past to the exact moment when it commenced the journey. The argument presented by Godel is based on the belief by some philosophers and physicists that the past, present and future equally real. These views on past, present and future represent the ideas of externalists group of theorists who argue that there was no

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