Time travel is impossible because to do this you would need to rewind the universe, and thats not TT thats literally reversing every atom, particle and space between atoms and GOD knows what else to a previous state. Everything exists at once and it is in a constant forward motion. Time is not a line, it is mearly a measurment of point A to B, you cant go back to A because it is, in fact now point C. So even reversing everything would still only take you forward.
Thats my view anyway. What yall gonna do bout that!
At the heart of the problem is the 'Time Travel paradox' which goes something like this. Suppose a person travels to a time before she was born and breaks a causal chain that led to the traveler's birth. This problem has been commonly explored by asking 'What if you killed your own grandmother before she first conceived?' (Curiously the problem is never expressed in terms of killing your own mother). The apparent paradox is then of a logical sort: P entails NOT P and NOT P entails P. If you kill your grandmother then you would not be born, which in turn would bring it about that you not travel into the past, thus you would not kill your grandmother, thus you would be born causing you to again travel into the past to kill your grandmother.... ad infinitum.
Taken from an article on this website I dont know if that has been stated already but its very interesting and I definitely support that theory....
Time Traval Destorys all Destiny We know this due to... Hiendenburg's Uncertainty Theory which states two atoms may not be in the two places and time as each other or which creating endless copies completly destorying the spacetime contiuim
Lotso good thoughts on this from people. Glad to see you have your thinking caps on.
Well
then you could make the case that we 'made up' black holes, anti matter, neutrinos, gluons, time dilation, gravitational waves and the curvature of light beams around massive objects.
We did tho. I understand we can use theorys and lots of the time we get it very right, but we also get it wrong regularly, although I suspect this happens less now i.e. I dont think we make such mistakes like the earth is flat and we revolve around the sun etc...
Of course traveling to the future is possible, I'm doing it right now!
I agree in a way, but I would be more inclined to say there is no future, no past... only the now. The never ending now.
Time is not a mallible substance that can be bent, so there is no physics behind bending the past and the future to our will. Any talk of traveling into the future is just the same as freezing yourself and melting 100 years into the future or making the universe travel faster than you i.e. going faster than light. In essence thats not really "time" travel like a sci fi movie, more like one two skip a few ninety nine a hundred. I would say scifi time travel would be like having a portal that you could step between times or being literally taken from this time and plonked into another.
The issue with time travel isn't necessarily the traveling part its the consequences of doing so. Time in itself is a fragile thing and messing with it could very well destroy everything we know in an instant.
but could also produce some wierd results. but messing with time at all will affect everything but what was before the date that was messed with. or your present date. what ever comes first.
and time doesnt exist in the universe because whenever we call someone from one place, then the other person can get the call from the opposite side of the universe directly. which means that time travel is possible. also, arggg i forgot his name, but he was like Edison, who was inventing things for fun because he was interested in inventions. and he accidentally found out that the the ship that they were testing was gone. and a day later, he and other ppl found out that the ship has time traveled, but this info was forbidden because of the gov't
What the heck are you talking about? What do you mean about calling from one place to another being time travel? And something about a ship they found out had traveled through time? How did you make these connections??
We are a few nanoseconds behind because of the earthquakes in Haiti and Chile.
And another one. How do you make this connection? Earthquakes make us go behind in time? How does this work exactly?
I like reading these time travel threads because some of the reasons people come up with that "show" time travel could be possible just make no sense at all. I don't get it...
"When you time travel, does it mean that you're destined to time travel? Is it fated that you are the one who make the time machine? I dunno. I mean come on if you're fated to do this what the hell are you doing with a time machine? Saving people? Messing the time line? But still the worst part of it is the headache I'm having when thinking this."
I said the above statement to a friend of mine.
You see, to me time traveling is really confusing. You have a time machine, you use it to take stuff at the past to take stuff(present for the people of the past but, you know what I mean), you come back to the present and found out that all of the present is corrupted. Like in a movie when Charlie Chaplin reverse role with Adolf Hitler(I can't remember what it's called). It's really a confusing matter so, I'll leave up to those guys with high IQ(My IQ is above average but below genius) to solve this time traveling thing.
Perhaps there is no solving of the time travel thingy. I just dont see how we can go back to something that doesnt exist. Unless we have alternate universes but I am assuming that they too are constant and even if one alternate universe was exactly the same as ours exept 10 years in the past then this still isnt time travel, just traveling to that universes current "now".
There is no point in trying to prove or disprove time travel thru the use of paradox, it is untestable and simply doesnt work.
Time Travel, as into the past, is impossible, as paradoxes could occur. If you fire a bullet into the past, and make it so it travels back in time to right when the man was about to shoot it, it would kill him. The universe prevents this.
To travel into the future, I believe, is the famous equation
E = MC²
M being the mass of said person or object, C being the speed of light, and the E being energy. So you would need your mass, times the speed of light, all of that squared, and that's how much energy you need to travel back in time.
Let's say it is set up like this:
1 600 = 4(10)²
Why this doesn't work. There is no other speed faster than the speed of light. To travel NEAR the speed of light, slows you down, so the laws of the universe are in order. If you can somehow defy the order of the universe and do this, you will travel back in time. This is totally possible, if what we know about the order of the universe, is wrong.
If the speed of light, was not the fastest velocity in the universe, and you could go faster, say, the mass of your body times the speed of light faster, then you could travel through time.
Traveling to the future, possible, but not probable. Traveling to the past, impossible.
To travel into the future, I believe, is the famous equation
All the equation e=mc^2 shows is that mass and energy are equivalent. What's surprising is that not only don't you understand what the formula itself is meant to show, but you also don't seem to understand the squaring function either.
You said:
So you would need your mass, times the speed of light, all of that squared, and that's how much energy you need to travel back in time.
But in this equation, you only square the speed of light - you don't square the product of the mass and the speed of light.
To travel NEAR the speed of light, slows you down, so the laws of the universe are in order.
I can say things that don't make any sense, too. Watch: Some people say cucumbers taste better pickled. But yeah, traveling near the speed of light doesn't slow you down. If it did, then light wouldn't be able to travel the speed of light.
If you can somehow defy the order of the universe and do this, you will travel back in time.
Based on what? I mean, I've read some articles where someone like Stephen Hawking says this is possible. He may be a famous physicist, but that doesn't make him a good one.
The reason people bring up this particular Einsteinian equation when talking about time travel is to show the impossibility of doing so - not the probability of doing so as you suggested. But what they're actually talking about is a derivation of this equation that shows that you would need infinite energy to get something with mass going faster than the speed of light.
The equation you're talking about is far more useful when analyzing things like nuclear fusion. When fusion happens, there is a loss of mass within the total system, which is released as energy (that's why we say mass and energy are equivalent). Since the very small amount of mass lost in this process gets multiplied by the square of the speed of light, and obviously huge amount of energy is released. This is the process that fuels our sun. But this is of very little help with the problem of time travel.
