Why time travel will never be possible.

Time travel has happened, but someone figured out it was fucking up everything so Hitler's great grand daughter went back in time and killed the inventors of the time machine... See, i can say that and not be right or wrong because no one knows

 

One thing is for sure, if there was a time machine, I would try to stop it because it would obviously get used to change the course of history and to people's advantage.

 

I don't know how to explain it exactly but here's the senario. A guy has a family, to get more money he goes back in time and puts money into a bank account with a high interest rate to get rich. When does his family see the money? When he had a family he would already be rich which would mean that he wouldn't have to go back in time, which means this whole senario is impossible. Like i said, this is hard to explain but just think about it. If you went back in time then the second time around in your life then you wouldn't have to go back in time making this impossible.

 

Yea, but there are no paradoxes or alternative universes so...

 

Everything happens in the world for a certain reason. Nobody should try to change that.

 

If Time is money, and money is Time, what is mind?​

 

nothing is inpossible just verry unliky to happen.

 

Probably not relevant to all the time-travel stuff, but what about [SIZE=-1]Cerenkov Radiation?[/SIZE]

 

Nope because what I said had nothing to do with them having a time machine. I basicly said that if aliens can go the speed of light then doing that doesn't do anything. There is no time machine.

Time travel is not possible, never will be. Blue prints don't mean anything, I can make a few drawings and call it a time machine too. Science saying it can doesn't mean jack, we are probly wrong about tons of things in science.

 

What the fuck? Gtfo nobody wants to hear your stupid shit that makes no sense at all.

 

rofl

yeah i highly doubt time travel will be possible.

but yet again, you never really know

 

maybe the people in the future are smart enough to realize that if they go and meddle with time, their own asses may be non existent, so perhaps they are here and observe us and know something WILL happen, but choose not to act.

 

Time travel into the future is already theoretically possible. You may not think of it as time travel, but you are still going through a personal slowing in time resulting in your being behind everyone else. Just travel extremely fast- near light speed. Since the theory of relativity states time will have slowed down for you, then when you return everything else will be much older.

So far, no confusing stuff.
As for time travel into the past... that's a bit harder. You'll never exceed light speed, as your combined velocity in 4 dimensions has to equal light speed, which is why it slows in time as you move very fast in space.

Only 'massless' particles can even travel at light speed. Gravity, light, magnetism all move at light speed. In fact, by exploiting their wave/particle duality and phases (crests, troughs), you can even make them move faster than light. Such a case is indistinguishable from moving backwards in time, since any pulse moving faster than light will get to you faster than the original light- so it looks like it comes out before it gets into the phase machine. Though you can't send any information this way; signals always get distorted or erased by this kind of thing.

Others speculate on wormholes to move backwards in time. To bend space into the kind of saddle-shape needed to go backwards, you need a patch of space with negative energy density. It's not certain how we can get that, but certain areas do have it. The spaces between plates for the Casimir effect have negative energy density, since they are less than 'empty' space, which is averagely zero. Particles and anti-particles are another time-traveling possibility, since a positron (anti-electron) is an electron moving backwards in time.

I'll say this about paradoxes: they definitely exist, but many of them aren't very convincing. Many paradoxes rely on you 'not going back now that history is changed'. They fall apart if your future just happen to 'want' to go back and be responsible for the change, even though you can enjoy the benefits in your time. So if you're going to present a paradox, make it one that doesn't depend on human wills.

 

Well i forget what theory it is or whatever. But if a mother has twins and one baby stays on earth, and one is shot in to space and travels at near light speeds constantly for everyday of his life. When the twin on earth is like 14-16? the one in space will only be 10.And faster than the speed of light is impossible because youd need to be faster than energy itself or something like that.

They say in black holes not even light can escape. So they are essentially bending the light in. If you can bend light, you can bend time.So if two objects traveling at near light speed, or light speed well prepelled at each other bother heading towards a black hole and it bent them in and the light, if it can bend light wouldnt it also be possible for it to bend time?

or.. wel could also consider.. we cant exist in 2 places at once, if we exist in the present we could not exist in the future at the same time, because every action i make or dont make, would effect my self in the future. Which leads to the theory of alternate dementions. Which leads back to my 2 ojects traveling at light speed theory. if two objects traveling at light speed were to collide wouldnt the force and speed, essentially tear time and space? maybe im just bsing here but, super novas like when stars collapse in on themselfs, create black holes right? well if 2 objects traveling at light speed were to hit what would happen? would they explode? or would the speed be so great they are foced backwards possibly at speeds excelling the speed they were going or collapsing in on them selfs, ripping time and space /alternate deminsion thingy.

who knows lol.

 

When you return? you never left, you simply traveled faster. When you would return, you would be older, because You have been traveling at average speed for yourself, but everyone else would be moving slower to yourself.

 

I find it funny how you guys read a few things off the internet and think its a fact. "you can bend light you can bend time," A theory? "theory of relativity", another theory

a theory is not a fact

 

A theory is a well-substantiated amalgamation of facts, evidence, predictions, and explanations that is logically consistent. Relativity theory has been verified to the extent that it can actually be considered a working theory.

 

It has been proven that time can slow down and that light doesn't slow down. (reply to redeemer)

 

Light travels at a speed relative to its medium. It will travel slower through air than it will through a vacuum.

 

Yes but I meant it's the only thing that doesn't slow down in a medium.