Okay, so to go back in time , you must go back in a physical form right? And you must also use some machine to transport you through the warp, correct?
Well, if those are two absolutes, than to go back in time you are bringing matter with you. Whether it be your self or a machine of some kind, you are bringing matter with you. Since the matter that forms you and the machine are already present in the past, just in a different form, then you are really creating matter, correct? And when creating that matter, there is a big frigging explosion, since you just formed matter that already existed. Therefore, you die.
However, when you go forward in time, with such a machine, you will not die form a big boom. The reason being, when you leave your time period to go forward in time, then you left a gap in matter where you and your machine used to be. This would create a gap in time, but only until the time in which you get back, at which point the gap will be refilled.
Personally I think going back through time/ making things unhappen is striclty impossible. There is no 'time line' thing you could draw back. What happened happened and stays that way until something new changes it, chemistry and physics know this.
steven hawking doesnt have to be a focus its common knoledge that time traval is impossible see when you go through time you create a tear the more u jump if successful the biger the rip will be then the fabric of space and time will be damged thus making a tear in the space time continum which is very bad so even if successfull it would syill fail because we will make a black hole in the process
backwards time travel is impossible, humans travelling at the speed of light is impossible, and lastly, travelling in to the future,.... that, is...POSSIBLE! because we cannot travel 100% of the speed of light, due to the properties of nature that govern the universe, and time will slow us down to 99.9999999999..% the speed of life, when time slows down around us, time is still going normally around others, so if we were on a train going 99% speed of light, but there was a car only going 60 mph, the car would be in "regular" time, but the train, 1 week would be the equivalent to 2 years i believe, and so forth, so technically, we are travelling into the future.
its common knoledge that time traval is impossible
Its actually quite possible, when going forward. In fact everyone is currently going forward in time. But thats not what people mean when they say time travel. The time travel people mean is currently (last I knew) impossible, it can't be done instantly(so far as I have heard). However by dramatically increasing speed time for the object at high speeds slows down and thus when they slow down everything else has gone further in time than they have.
moe... thats just what i said, because time will HAVE TO prevent us from going the speed of light. the only things we know of that can travel that fast are forms of light energy, but plants may be able to travel the speed of light, because of thier food source, the sunLIGHT this is my theory, but i doubt it will hold true.
It all depends on whether time is linear or a wibbly-wobbly timey wimey ball of... stuff.
I tip my hat to you in the name of the Doctor.
On topic, is this at all related to the theory basically stating that traveling through time will inevitably result in the destruction of the departure point? Whether or not it is, time travel isn't possible with the current level of knowledge and technology, but there's nothing to say that the technology isn't feasible in the future. With new advances and new research into new concepts that are practically unthinkable with current science knowledge, it's absolutely possible we will be able to attain the ability to travel through time. Not likely, but possible. Hopefully whatever traveling we do will be omnidirectional though.
I don't even believe in time as a concept - just because we can measure and record it doesn't make it a physical quantity - far as I'm concerned, there's one big point of existence and we're all invited.
To put it simply in a rather complicated manner...
It may be possible to travel through time if parallel universes exist. Simply, one would jump to that universe and then jump back to this one at a different point in time. This way, one would not be restricted to the timestream, moving forwards at a constant rate, and could simply pick a timeframe they wished to join.
Of course, this also relies on time being one big string of...well, time. Time, of course, is relative to whichever being is in question - Einstein's Theory of Relativity provides solid evidence towards this - and hence it may also be possible for a being to stop within the timestream, or exit it as such.
