future - yes
past - no
I'm not sure that even relativistic time travel is possible. A collision with a hydrogen atom at 99% of lightspeed is pretty damn energetic. This physicist compares it to standing in the path of the LHC beam:
http://www.newscientist.com/article/dn18532-starship-pilots-speed-kills-especially-warp-speed.html

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| twesterm said: We already know how to time travel to the future, we just can't feasibly do it yet. It just involves going really really really fast (99% speed of light) and you travel forward in time! You can also stand next to a really really really heavy object and you'll travel through time slower. Traveling to the past is another story. People thought you could do it through wormholes but if you could travel to the past then you could create a paradox. The universe doesn't like that so it does every thing it can to stop you from traveling to the past. If a wormhole was opened up that was large enough for you to travel through, it would instantly create a feedback radiation loop that would instantly destroy. That's the universes way of not letting you create paradoxes. |
What we "see" in the present though really happened in the past, as what we see is just light bouncing off an object and reaching our eyes right?
So what if you could travel faster than light, say move away 1 light year in the blink of an eye, and have a powerful telescope that could focus back on the earth, wouldn't we be seeing what happened a year ago?
Unicorns ARE real - They are just fat, grey and called Rhinos

no, that's rediculous.
Been away for a bit, but sneaking back in.
Gaming on: PS4, PC, 3DS. Got a Switch! Mainly to play Smash
Yes. I know because I am from the future. Damn Apple iPeople taking over the goddamn universe.
http://www.youtube.com/watch?v=F1gWECYYOSo
Please Watch/Share this video so it gets shown in Hollywood.
its already happened!
some astronaut treveled like .02 seconds into the future or something by moving in a satalite.... SOMETHING like that
i couldnt be bothered to find the article
now time travel in the movie sense? possibley BUT i've heard a theory where it would only be possible to travel back to the point where we first discovered time travel

| Dioxinis said: its already happened!
some astronaut treveled like .02 seconds into the future or something by moving in a satalite.... SOMETHING like that
i couldnt be bothered to find the article
now time travel in the movie sense? possibley BUT i've heard a theory where it would only be possible to travel back to the point where we first discovered time travel |
Yeah, traveling forward small amounts isn't actually a big deal, satellites orbiting the Earth do it every day. Something near a massive object travels through time slower than something further from that object or something near a smaller object. Note that we're talking really big objects like planets, not just big objects like a mountain or Gabe Newell (j/k, i <3 u Gabe).
The satellites orbiting Earth that govern our GPS systems constantly lose time because of this and constantly have to be corrected. They're the most precise clocks ever built but they still lose time because of that. It's a pretty small amount of time they lose, but it's still significant considering the satellites purpose. If they didn't do the correction our GPS systems would be more than a mile off for every day they weren't corrected.
So knowing that you could orbit something huge, say like a super massive black hole and travel more slowly through time than everywhere else in the universe effectively sending you in the future. Of course that isn't really feasible and even if you stayed in orbit for a year you would only gain a year and orbiting a super massive black hole would be no laughing matter.
As for your theory at the end, it's stupid and should never be repeated. What physical law would govern that so we could only travel to that point?
Tanstalas said:
So what if you could travel faster than light, say move away 1 light year in the blink of an eye, and have a powerful telescope that could focus back on the earth, wouldn't we be seeing what happened a year ago? |
That theory fails simply because you can't travel faster than light. It's just one of those laws of the universe.
Hell, I don't believe you can even travel as fast as light. Why? Again, because the universe doesn't like you breaking rules.
Pretend you were going 99.9% the speed of light or even the speed of light, what would happen if you stepped forward? Wouldn't you be going faster than the speed of light?
No, you'd be going so slow in time that your velocity of stepping forward would actually be so small that it could not put you above the speed of light no matter how quickly you tried to move.
Even if you could do what you're talking about, you would only be seeing light, you couldn't actually affect anything. You could affect the waves, you couldn't affect the source of the waves. You would see the past, but it would still be the present at the source of the light.
I can say its FAIRLY possible.
Although anticipating the day of its invention will probably take you about another 7 millenia if all goes according to the rate of invention mainstream products.
or maybe another 1000 years if we can find some special object or whatever that doesn't require us to provide the energy to travel