Why doesn't light move at an infinite speed?

[Alesak]

Yes, I have to say that I do. There are still problems that I find difficult, like the one in the thread bcrowell started the other day. It involves an indestructible submarine moving at a relativistic speed in indestructible water in a very large tank that's accelerating in a direction that's perpendicular to the motion of the sub in the tank. What kind of masochist even comes up with these problems? But when it comes to basic stuff like the twin paradox, it all feels very simple now.

Screw LHC, let's do this!

 

[TrickyDicky]

It is the other way round from what you mean with that: in classical mechanics the limit speed is much faster than the speed of light (infinite), while in SR it is equal to the speed of light.

Ok, if you can't see this is equivalent to what I wrote I guess there's no need for further discussion.

 

[Milan Nikolic]

If the expansion of the universe overcome the speed of light for a given photon, then what happens to the photon? I guess it's still difficult to answer this question, but I think that may already give some assumptions.

The answer may lie in the dark entities.