Will time-travel ever be possible? (See my theory below).?

Question

I think time-travel will never be possible because...
1. Someone in the future would have invented it and come back to now.
2. If I went back in time and prevented my parents from meeting then I would never be born. If I was never born I couldn't go back in time and prevent them from meeting.

Answer 1

That is only one possible way to time-travel. What about traveling into the future? What about traveling into the past only a limited amount of time?
Traveling into the future is already possible to some degree.

Answer 2

This theory and (you cant kill your own Grandpa theory devised way before) are a lot similar.
The only way this theory can be beaten and Time travel exist simultaneously will require Existence of more than a single Universe or Multiverse each having alternate histories presents and possibly different futures.
The theory of Multiverse is being pondered by scientist, and the Super Collider project in 2009 aims at accelerating particles at such a fast speed,that they will jump dimensions.
If the project shows that the particles have jumped into another dimension, it will indicate that more than one Universe exist thus prove the concept of Multiverse.
So this means there is a possibiity of infinite Universes with different histories.

So if you ever get a time machine, you can change the past but of a different world not of your world
(ref: the movie"THE ONE" starring Jet Lee)

Answer 3

1. Sounds like Stephen Hawking’s rather presumptuous theory about not seeing “tourists from the future”.
2. “Back to the Future” used that "grandfather paradox" but it can’t physically happen because of the laws of physics in our universe.

You can’t prevent anything that is already known to occur or even something you don’t know occurred if it is even one Planck measurement of time in your past (see Planck Time). That’s the old, “If a tree falls in the woods…” riddle, which is all a time paradox is. It’s a mind trick. Something (a person, object, energy or combination of all) would always prevent YOU from “preventing” the meeting of your parents simply because they did meet and had you.

By the way, we ALL have TWO grandfathers so which one does the paradox mean, anyway? In real physics, Marty McFly would not have been able to stop his father, George McFly from being hit by his grandfather’s car. It happened that way in the movie because its good drama for a MOVIE. We want to see the victim of a bully (Biff) get what’s coming to him later and the victim to become a better person (Marty’s parents when he comes back to 1985 are a successful couple not poor losers when he left). Will Marty get them back together before he fades away? Of course he does. He’s the main character.

Paradoxes are shown for the same reason we hear all those big explosions in space in movies or TV. Dramatic effect. Nothing more. (A vacuum cannot propagate sound waves). Real time travel would work just like real physical laws work now. We cannot fly by thinking about it like Superman but if centuries from now we use technology, we could fly exactly like he does. We fly with technology now. That’s the proof. It will happen, just not anytime soon.

If you only “move” forwards or backwards in time and not space as well, even by one second, you’ll be about 18.6 miles further away from the spot you were in before you went in time! That could put you in the upper atmosphere or within the crust. Dead either way. The Earth has moved in a path with the solar system (I did the calculations) almost 4 light years of distance in the last 5000 years of time so if you want to see Ancient Egypt, you’d better configure your spatial co-ordinates too otherwise use a Federation starship cause you won’t get there otherwise. Alpha Centauri is 4.3 LY away, by the way.

Fong Zhi Kang has a point with Harry Potter - Prisoner of Azkaban; its known as “predestination”. You can’t affect the past even with fore-knowledge of a past event because things can only happen one way. We know this because, they do. Until someone proves the ridiculous “parallel universe” thing. Sci-fi writers don’t do much research with real science.

Sorry for such a long frakkin’ answer.

Answer 4

Is it not puerile to think that human beings can travel back in time and have an experience of the past? It is aclear case of wishful thinking . The idea was originally suggested by none other than H.G.Wells in one of his novels- the time machine, and the modern sci-fi creators have fostered it. If you think objectively it is the equivalent of making a made-to-order dream-making machine by using which you can order your dreams while you slept. It is a fascinating idea, but one which has no principles or guide us to make such a machine. To imagine that the mind will be able to go back in time and meet your ancestor who lived centuries ago is one of the greatest fictions of mankind!Above all such an ancestor would live in flesh and blood goes against the very grain of natuaral science. All this talk in 21st century is the travesty of reason. Many thanks.

Answer 5

Time travel - in that it enables you to see what happened at some other point in the time line - already exists, and has for almost four centuries.

Light takes a definite period of time to travel a specific distance; seeing what is happening on distant planets (even our own sun!) is made possible by generated or reflected light ... which has taken some time to reach us.

Every time you 'look' at the sun, for example, you're seeing events that occurred approximately 500 seconds (a little more than eight minutes) ago.

The time-traveling device is the telescope, of course.

Now to perfect the one that enables us to 'see' into the future ...

Answer 6

Listen patiently to my theory: you are able to view a dimension below you easily but not the one above you. For eg. we are living in a 3 dimensional world. we know what 2 and 1 and 0 dimensions are (angle, straight line and point). But our brains transcend space and time.
Time as we know it is uni directional: always moving forward. But you can move backward to a very limited extent. For eg. through the mind (or brain or whatever). Obviously it (brain) is in a higher dimension and so you can look down on the dimension be it space or time. How do you go back in time? Simple. What did you have for breakfast yesterday? Where were you at 9.00 a.m. day before yesterday?

Answer 7

there is not any logical or actual project with traveling into the destiny - all we could desire to do is suitable some freezing technologies. There could be a technical and scientific project there, yet no paradox or actual impossibility exists. traveling into the previous is a distinctive remember, and that i think that that is impossible for here motives: a million. it might invoke paradoxical situations 2. If it ever became achievable, we could have been visited by utilising others from the destiny... or we would have detected messages or something from the destiny. So... commute to the destiny is a one-way holiday. very equivalent to existence.

Answer 8

I have the same idea as you. Time travel will not be possible. Unless....it is impossible to kill the father. (Like a scene in Harry Potter and the Chamber of Secrets where Harry went back to time and cannot do anything to anyone. Then, it's possible.) Your second theory is the Grandfather paradox.

Answer 9

You are absolutely correct. Mayb some advanced, devious individual would have come back to take over the world. Besides, If I could travel to the future for brief moments, I would come back to the presemt with cool facts and make a lot of bets that would make me rich.

Answer 10

I was once in a paradox.

It was a factory with a loading dock in the front and a loading dock in the rear. Was that time travel?