Does general relativity make time travel impossible or just very difficult?
11307
Is time travel possible? Is it possible to go back in time?
35663
Is there a formula that gives the position of an object depending on the time, but which doesn't allow the object to surpass the speed of light?
39989
Is gravitational time dilation different from other forms of time dilation?
26363
How does faster than light travel violate causality?
76819
How does "warp drive" not violate Special Relativity causality constraints?
37345
Why can't massless particle exceed speed of light?
12986
Why does GPS depend on relativity?
63925
Gravitational time dilation, does time of the observer at a lower gravitational potential looked slowed down in the frame of the higher one
4645
What is time dilation really?
17218
Open problems in General Relativity
151086
What bends fabric of space-time?
64286
How can gravitions exist without violating GR?
50651
Does special relativity imply that time dilation is affected by an orientation of clocks?
10178
How can mass bend spacetime, if there's nothing to bend?
15685
Does slowing light violate relativity?
123933
Why is causality preserved in special relativity?
42489
How to disable "time travel" entirely?