just thought i'd toss it in the circle of talking.

do you think it's possible, and if so, what kind of impact on human society will it have?

Time paradox: If you travel to the past and kill your grandfather when he was a child for example. This is why I don't see time travelling as a posibility.

<div class='quotetop'>QUOTE(Tulac @ Mar 6 2007, 09:44 AM) [snapback]282059[/snapback]</div>Yes well, what happens next is the Space Time Continuum unravels and the universe implodes upon itself and all manner of strange and big and possibly painful things happens. It's like trying to divide 100 by 3 on a calculator, except instead of writing .333 etc to the end of the screen it comes up with a Syntax Error. Somethings gotta give, and the usual theory is the universe.
If time travel was ever invented, I reckon it would be a bad idea to go around killing grandfathers. The closest we'll ever get to time travel I reckon is like what happens when you fly around space at high speeds and you return to Earth a few years younger that what you whould have been, ie. had you not flown around space at high speeds.

Maybe you should make a promise that you will build a time machine in future and return to this day to meet you.

If you would promise to do it, would you appear next to you all of sudden?

<div class='quotetop'>QUOTE(Tulac @ Mar 6 2007, 08:44 AM) [snapback]282059[/snapback]</div>This is also a reason why it is a big nono.
http://i6.photobucket.com/albums/y23...imeParadox.jpg
Dear lord...

<div class='quotetop'>QUOTE(Tulac @ Mar 5 2007, 11:44 PM) [snapback]282059[/snapback]</div>dont you think that if you were realy able to travel in time, you d be do something like that? what if its "constant" that your grandfather ll survive and even if you travel back in time, it already happened before you was born, so even if you try, no matter how, something would happen and you grandfather d survive otherwise you wouldnt be able to get to the time mashine..or whatever.

OR what if each time you travel in time, you create paralel universe, like alternative, where you can do anything you want and you r just copy (actually cut) from your own universe.

You are mixing up two distinct things r.u.s.s., 1) time travel and 2) parallel universes; maybe they are connected in ways we can't even imagine. The true is, none of us know enough about this to be able to draw a decent conclusion, all we can do is speculate.

I don't believe in that time paradox thing and how it could make the universe collapse; if someone ever invents a time machine, that's probably being a part of what is supposed to happen; if that person travels to the past and does something there which even terminates his own existence, then maybe that was what was supposed to happen, and the line of time will adapt - maybe someone else in the new time line invents the same machine and travels back to do the same thing. Even the smallest change in the past could have catastrophic consequences in the present - just imagine a time traveller taking one of our "modern" diseases (like for example aids) and spreading it 200 years ago.

I don't believe in time :P
For me, I view it as a quantification of change and something inherent to our (mental) experience.
I find it an odd notion that the past would be thingey residing somewhere.

Yeah, you could play games. Try and reverse laws if you like, or recreate instances of potentiality, but there's no difference in the way one would experience that.

I believe if you went back in time and killed your own grandfather, several things would happen, only two of which I can suggest;

1. In killing your grandfather, you would cease to exist in this reality.

2. The universe would split, creating; One, a universe where your grandfather continues to exist, and you disappear the moment you made the killing blow. Two, A universe where although your grandfather has died, you continue to exist.

I also think that if anyone was approached by theirselves, it would disrupt the universe flow. Again I cannot be more articulate because they are simple beliefs I hold.