The speed of light sets a lower limit to the rate at which a reference frame can pass through time. Is there anything that sets an upper limit?
124330
Can an observer B move in such a way that his clock will run faster than that of a fixed observer A?
112408
What is the theoretical limit for farthest we can see back in time and distance?
88879
Time dilation as an observer in special relativity
4132
What is the closest general-relativistic equivalent of a "time slice"?
120679
Rømer's determination of the speed of light
76819
How does "warp drive" not violate Special Relativity causality constraints?
36719
Gravitational time dilation at the earth's center
1537
Is a photon "fixed in spacetime"?
974
Speed of light in a gravitational field?
138834
A question about special relativity theory
37345
Why can't massless particle exceed speed of light?
45888
Minkowski metric -- why does it follow from the constancy of the speed of light?
80291
Relativistic velocity addition from time dilation
70852
How exactly does time slow down near a black hole?
28488
I am confused about the idea that the speed of light is independent of the speed of the source of light
56005
Speed of light travel
13757
Is there a device that could measure the speed of time?