Linked Questions

12
votes
4answers
3k views

Is time travel possible? [duplicate]

Time travel -- often featured in movies, books, or facetiously in conversation. There are also theories treating time as simply another dimension, which to the layperson might imply forward and ...
2
votes
1answer
5k views

How can I send a message to myself in the past? [duplicate]

It is easy to send a message to myself in the future: I can put a letter in the post and will receive it tomorrow. Can you think about a way to send a message to myself in the past; it does not need ...
1
vote
2answers
2k views

Does Stephen Hawking not believe in Negative movement? [duplicate]

Possible Duplicate: Is it possible to go back in time? Is time travel possible? According to Stephen Hawking, time travel to the future is not only possible but proven, however time travel to ...
0
votes
1answer
656 views

Time travel, is it possible? [duplicate]

I see there are many questions with this title, but this one is different, so please give it due thought: Is time travel possible? If so, Can we go both forwards and backwards in time? Paradox: I ...
1
vote
1answer
528 views

Time Travel: Is it Possible to return to an earlier time? [duplicate]

(Please note: I've seen some other questions asked like the one I myself am asking, I realize that I am indeed late to the party, but I am genuinely curious and none of the previous answers have ...
1
vote
1answer
522 views

How is traveling back in time possible in theory according to some scientists? [duplicate]

Possible Duplicate: Is it possible to go back in time? Is time travel possible? I get the idea of traveling to the future and it makes perfect sense as we'd be somehow trapped in a machine that ...
0
votes
1answer
190 views

Can we develop in the future a technology that can send a message to the past? [duplicate]

Possible Duplicate: Is it possible to go back in time? I believe that everything is possible in this world. If that can be done then why aren't we receiving any message from the future.
0
votes
1answer
284 views

Tomorrowland movie and tachyons? [duplicate]

Would be possible if tachyonic existed to send info to the past or see the future? since the tachyons according to special relativity could travel to the past? i have searched in wikipedia and the ...
2
votes
1answer
256 views

Does general relativity make time travel impossible or just very difficult? [duplicate]

I was hoping to get some technical answers to this question, and was really asking because I thought it'd be a fun question. Have at it folks.
0
votes
1answer
172 views

Time Travel possibility and Paradoxes of The Past [duplicate]

can one travel back in time and if not so, what laws prevent time travel to the past. this is quite a challenge to understand.
0
votes
1answer
205 views

Did physicists solve the grandfather paradox? [duplicate]

Now, physicists are trying to send information backward in time. But, why are physicists almost sure that this would happen and why are they so confident about it? Did physicists solve the grandfather ...
0
votes
1answer
92 views

Time travel, possibility? [duplicate]

It is said that if we travel at the speed of light,we will go into future,please could you explain how?Is it possible to make a time machine ever? Please give an easy answer, a simple one!
-2
votes
1answer
80 views

Time travel in 4th dimension [duplicate]

Can we travel in past in 4rth dimension because according to physics it is not possible to travel in past in even 4rth dimension we can only go in future.pls explain.
0
votes
1answer
84 views

Are there any theories out there that explain this time travel paradox [duplicate]

I was quite perplexed by a paradox that I thought of, for instance, say I am a person who completely understand einsteins field equations. In this case, Einstein formulated his theory. Now, say I have ...
-3
votes
1answer
97 views

Is this statement defensible? [duplicate]

If I contend that time travel into the past is not possible in any possible version of future reality that we can access since no time traveller from the future has yet presented themselves to rebuff ...

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