Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space, either sending people, other objects, or just information backwards in time to some moment before the present, or sending such things forward from the present to the future without the need to experience the intervening period (at least not at the normal rate). Any technological device, whether fictional or hypothetical, that is used to achieve time travel is commonly known as a time machine.
Although time travel has been a common plot device in Science Fiction since the 19th century, and the theories of special and general relativity suggest methods for effective one-way travel into the future via time dilation, it is currently unknown whether the laws of physics would allow time travel into the past. Such backwards time travel would introduce paradoxes, and a variety of hypotheses have been proposed to resolve them.
IN SIMPLE WORDS IF WE TRAVEL WITH THE SPEED OF LIGHT WE CAN TRAVEL THROUGH TIME
-STEPHEN HAWKINGS-
both can be possible in theory
Basically, it isn't known whether time travel is at all possible.
He believed that, in theory it could be possible to travel backward in time, but he did not make a machine to conduct time travel
In theory it is possible but you must put the bacon in bacon sause and cover it in bacon bits :D (to go back in time)
In Theory..............YES!!!
Indeed, time travel, and travelling faster than the speed of light, are intimately related in the Special Theory of Relativity. Looking at the situation from the other side, if it were possible to travel faster than light, then from some point of view, you would be travelling backwards in time. For more details, read about the definition of "simultaneity" in the Special Theory of Relativity.Probably none of the two is possible - travelling backwards in time, and travelling faster than light.Indeed, time travel, and travelling faster than the speed of light, are intimately related in the Special Theory of Relativity. Looking at the situation from the other side, if it were possible to travel faster than light, then from some point of view, you would be travelling backwards in time. For more details, read about the definition of "simultaneity" in the Special Theory of Relativity.Probably none of the two is possible - travelling backwards in time, and travelling faster than light.Indeed, time travel, and travelling faster than the speed of light, are intimately related in the Special Theory of Relativity. Looking at the situation from the other side, if it were possible to travel faster than light, then from some point of view, you would be travelling backwards in time. For more details, read about the definition of "simultaneity" in the Special Theory of Relativity.Probably none of the two is possible - travelling backwards in time, and travelling faster than light.Indeed, time travel, and travelling faster than the speed of light, are intimately related in the Special Theory of Relativity. Looking at the situation from the other side, if it were possible to travel faster than light, then from some point of view, you would be travelling backwards in time. For more details, read about the definition of "simultaneity" in the Special Theory of Relativity.Probably none of the two is possible - travelling backwards in time, and travelling faster than light.
No, according to the theory of relativity, it is not possible for information to travel faster than the speed of light.
You can't travel at the speed of light. It might be possible, in theory, to approach it, but not quite to reach it.
Time travel is currently not proven to be possible according to our scientific understanding of physics. While there are theories like Einstein's theory of relativity that allow for the possibility of time dilation, actually traversing through time remains a concept of science fiction.
There is no evidence that what is commonly known as "time travel" is possible at all.
It already is. You can time travel for at most a few days when you cross the dateline. If we could possibly make a larger dateline and compress it like our intestines, crossing that could possibly time travel more. There is one glitch however, you have no control over where and when you travel to. NOTE: This is only a theory. The larger dateline has not been tested.
According to current scientific understanding, time travel to the past is not possible due to paradoxes such as the grandfather paradox. Additionally, the concept of time travel to the future is theoretically possible through time dilation as predicted by Einstein's theory of relativity. As for why no one from the future has come back, it may be due to the practical limitations and complexities involved in achieving time travel, or perhaps it is simply not feasible in the way commonly depicted in science fiction.