Time travelling is not posible :(

[ILL SLAUGHTER U]

Here's a thought: If time travel were possible (going back in time anyway) then wouldn't there have been tons of travelers from the future by now? If, say, they discovered a way to in 2510, then from that time until the end of civilisation how many would there be? Surely at least a few would have made themselves known by now.

Not to be mean but read above.

I partly do agree with you though it is a simple understanding of human nature to realize someone would say something. BUT, maybe someone high in command (in the future) realized the paradox s*** and banned time traveling?

[sanddbox]

Here's a thought: If time travel were possible (going back in time anyway) then wouldn't there have been tons of travelers from the future by now? If, say, they discovered a way to in 2510, then from that time until the end of civilisation how many would there be? Surely at least a few would have made themselves known by now.

Not to be mean but read above.

I partly do agree with you though it is a simple understanding of human nature to realize someone would say something. BUT, maybe someone high in command (in the future) realized the paradox s*** and banned time traveling?

And NO ONE went back, in the vast eternity of time? Not one person came back to 2000 to witness those silly 'cars' that didn't fly?

[ILL SLAUGHTER U]

Here's a thought: If time travel were possible (going back in time anyway) then wouldn't there have been tons of travelers from the future by now? If, say, they discovered a way to in 2510, then from that time until the end of civilisation how many would there be? Surely at least a few would have made themselves known by now.

Not to be mean but read above.

I partly do agree with you though it is a simple understanding of human nature to realize someone would say something. BUT, maybe someone high in command (in the future) realized the paradox s*** and banned time traveling?

And NO ONE went back, in the vast eternity of time? Not one person came back to 2000 to witness those silly 'cars' that didn't fly?

Pretty much

[insomaniacal]

The thing is, we don't really know if anybody came back or not. If they did, it would probably be extremely in an extremely cautious manner, because of course they would be aware of the possible dangers arising out of changing the course of anything. That's one situation. The others are:

1: Humanity dies out before we can figure out how to travel backwards in time.
2: Humanity learns that it is impossible.

[Ovason]

Well, it has certainly been proven that time is relative to space...

Therefore, any being considered to arrive from outer space is also arriving from out side time...

So, riddle me this batmongers... Do you believe in life on other planets? or ETs? Is it impossible that one day others will arrive from 'somewhere else'? I previously mentioned that

1) should anyone step outside of the time-space structure that we currently inhabit, by definition: they are in another dimension.
2) the inhabitants of this dimension would have no knowledge of the existence of time travel

Further, what are you considering to be time travel? actual physical manifestation? What about other forms of energy? If you are looking for facts that determine the existence of something that is claimed to be impossible, a thorough definition should be established.

so to close with the words from one of the greatest musicians ever to navigate on the mothership
"Time is only elsewhere: somewhere else" -- 'Time Was (events in the Elsewhere)' from the album Blacktronic Science by Bernie Worrell and the Woo Warriors

or as a young girl once said... curiouser and curiouser...

[Flamechy]

Kajibwa i don't watch star trek .Steven Hawking say that the time is something like a ring of water or something like that.I don't remember.

[ShadowSniper0819]

Okay, FIRST off...time travel is possible. You're doing it right now. The question is whether or not we can travel BACK in time. Now technically, we can SEE into the past. For instance, a star that goes supernova a few thousand lightyears away will be seen here LATER, and hence we'll literally be seeing into the past. Now, traveling BACK in time should be impossible, simply from a logical point of view (due to all paradoxes and repercussions...)
However, Quantum Physics has shown us that you can NOT use logic within the submicroscopic confines. So it may be possible to go back in time, but the only thing that we could send back would be submicroscopic particles. The laws of Relativity will not allow backward time travel for objects of our size.
But MAYBE Superstring Theory will give us an answer

[tarantulas]

Time is a persistent illusion.

Even if time travel was possible (it is not), it would be a stupid thing to do.

[cilpolir]

Let's apply some Physics rules to this: Every particle has an anti-particle and we al know that normal particles travels forward in time,so shouldn't anti-particles travel back in time then?

[Spectre557]

The thing is, we don't really know if anybody came back or not. If they did, it would probably be extremely in an extremely cautious manner, because of course they would be aware of the possible dangers arising out of changing the course of anything. That's one situation.

Well that wouldn't really make a difference would it? The butterfly effect would ensure that even the tiniest of impacts would have an almost 100% probability of changing the future significantly enough to create a paradox.

If that's correct (and I have no idea if it is, it just seems logical to me), then even if it were technically possible to, the actual act of sending anything physically "back in time" would instantly cause that same matter/energy not to exist in its present (future? ) form, and as such, cease to exist completely... Which means the past wouldn't really be affected in any way whatsoever, in the end.

Did any of that make any kind of sense?