Time Travel and the Novikov self-consistency principle

The Grandfather Paradox​

The paradox is this: suppose a man traveled back in time and killed his biological grandfather before the latter met the traveler's grandmother. As a result, one of the traveler's parents (and by extension the traveler himself) would never have been conceived. This would imply that he could not have traveled back in time after all, which means the grandfather would still be alive, and the traveler would have been conceived allowing him to travel back in time and kill his grandfather. Thus each possibility seems to imply its own negation, a type of logical paradox.

Source: http://en.wikipedia.org/wiki/Grandfather_Paradox

Novikov self-consistency principle​

You make ask why I start off with a concept that contradicts my future statements, but in fact they help the theory.

The Novikov Self-Consistency Principle follows the theory that in General Relativity there are certain cases in which things called Closed Time-Like Curves exist, which would allow for Time Travel. What about paradoxes? This is what the principle deals with, it says that if an event exists that would allow for a paradox or any event that changes the past the possibility of these events are zero percent likely or near 0 zero.

This theory asserts that even if try to go back and do something, some sort of 'bad luck' would happen and make this event impossible to have occurred. Such as if you go back to shoot yourself then the gun would jam or you would miss.

It also allows for the possibility of several possible timelines and alternate universes which goes into a completely different subject that I shall not discuss here.



My point is that if this theory is correct then we are one of many possible time lines that go through the time stream and the possibilities that this provides. You cannot change your past.

Philosophically and Scientifically what do you think?

 

i think there are many time lines not just one, for instance parallel universes. i think in a separate universe someone traveled back in time and changed history.

I think that if someone does go back in time a new time line is created, a separate universe.

 

http://www.halfpasthuman.com/timeexpo2.html

The ONLY possible way to time travel is this:

"The Einstein concept of ‘relative time travel’ which is to say the concept of our test subject George getting into a space ship and zooming off at very fast speeds moving toward the speed of light such that ‘time’ will become relative to George is not time travel as we define it here. After 10/ten years of elapsed time-experience in this space ship journey, George returns to Earth to find that 80/eighty years has actually past and he is therefore in the ‘future’. This, under our definition, is NOT time travel. This example is traveling in space in a manner which merely reduces the impact of the passage of time on consciousness. In this instance, our test subject George, actually still lives through the 80/eighty intervening years, but simply due to the speed of his journey though space, only a fraction of the ‘time’ is able to catch up with him, and therefore the body/mind/consciousness that is George experiences only a fraction of the time. In this case, this is not ‘time travel’. George still experiences time, albeit at a slower level, and has to travel in space to achieve the effect, and he cannot ‘return’ to his point of origin, nor to move outside of the time flow in any manner. All that relativity accomplishes is to reduce the level of the time experience on the body/mind that is George."

Basically, its not even time travel.. its just experiencing time slower than everyone else. Tricky stuff.

 

This is assuming you already have the ability to time travel.

 

Philosophically, I think that there are ways that time travel can be done, but it would rise so many questions. (Did the chicken become before the egg?) With time travel, you can run into many contradictions (oxymoron.. paradox).. but that's mostly because time travel is something vaguely understood by us all, as it is nothing we've yet accomplished.

Scientifically, at this day and age, I still say this is not possible. Perhaps it will be in the future, but a lifetime outside of my own for sure. There are too many aspects involved in time travel, and hard to create/think/invent such thoughts/devices without the knowledge of what actually needs to be done.

For me, time travel is plausible.. and shall be until the theory can be busted or flawed indefinately.

 

"Why Time Travel is not possible
Within the continuous creation and destruction model of reality, it is obvious that such concepts of a ‘river’ of time are nonsensical. Time does not exist, other than the now. In fact, this model of reality demonstrates that time does not exist except as the impact of ‘events’ or ‘movement’ upon the mental processes of life within material reality. Noting that ‘time’ is existent only as a perception by life within material reality, by extension it can be postulated that ‘time’, being a perception and not a ‘thing’, must have nuance, and differences in its state of perception. Stated another way, time is not a constant, but rather is a perception and therefore is affected by the mind doing the perceiving. Thus we have an easy explanation for why there are various ‘flavors’ of time-feeling, such that the human mind is aware of the differences between the experience of various ‘types’ of time, and invents words/concepts such as ‘karios’ to better communicate the idea.

So time is a perception, that is to say, it is subject to our personal experience of it and is therefore not a universal constant. This does not mean that such things as mechanistic forms of time, as in ‘chronos’ do not exist, but rather that such are merely required aspects of the total experience of time, and not a ‘thing’ in and of itself.

The simple answer as to why time travel is not possible has already been noted. Time does not exist, therefore to ‘travel’ in it is without real meaning. Time is a complex perception of the pulse/pause of continuous creation, which as noted, also brings along with it, continuous destruction. Thus the ‘past’ does not exist except as a construct within our experience, again, not an independent part of reality. Therefore travel to the past is not possible. After all, it is gone, 22/twenty-two trillion times a second it is destroyed. The only ‘time’ that exists is the now.

Conversely, it is not possible to travel to the future, as it also does not exist. The next ‘future’ point in time that will exist is 22/twenty-two trillionth of a second away from both creating and destroying itself. Again, the ‘future’ does not exist. Not only has it not happened yet….it will, in a very ‘real’ manner, never actually happen at all.

It can be seen from this description that the analogy of time as being ‘river’ like is totally misplaced, and that construct is the point from which the erroneous idea of time travel originates."

-Clif High, halfpasthuman.com

 

To go back in time you would have to travel faster then the speed of light. Even then, say you were able to go back, traveling the speed of light and see what was happening in the past. The idea of any of this being touchable is absurd to be.

It's all very confusing, but I think any idea of time travel is impossible.

I think it is possible to see something that has occured in the past (theoretically), but any other idea of time travel - seeing as time does not exist; is not possible. Not even theoretically.

 

I think that all your points are logical but thoroughly invalid as traveling into the past is impossible.

 

If time travel is actually possible, meaning at some point in the future it would have been created, wouldn't they go back in time and change things? Back into our time, or a time before this? Maybe in the next couple centuries a man will "come from the future" who traveled back in time and blah blah, but chose the year 2599 instead of 2010.

 

For the Grandfather Paradox: Going back in time and killing your grandfather would cause another dimension to branch off the existing one in which you would never exist. This is philosophically speaking of course.