Another interesting implication of the speed of light is the jump in causality and the break of entropy caused by the mere existence of force carrier particles. I'm not as knowledgeable as Sochasty or K^2, so maybe they'll have a more sensible retort, but picture this: All the forces in the Universe (Weak, Strong, Gravity, Electromagnetic) propogate along with specific force carrier particles. Not all of those particles are mass-less, and not all of them travel at C, but all of them are strictly limited to C as a maximum velocity. So, when gravity bends space and time to a point where a photon sphere, and an event horizon are formed, it becomes impossible for any particle to escape the event horizon on any outward trajectory, because (from the perspective of all particles within the event horizon), there is no speed or trajectory that points away from the singularity. Visually, it would be as if the singulairty was actually a spherical wall surrounding particles, constantly closing in and getting closer. That in mind, a question I had a while back was that for the force carrier particle for gravity (gravitons) to convey the gravity of a black hole to any outside particles or observers, and for the gravity waves to propagate away from the singularity to suck anything else in, it apparently must escape the event horizon to convey its force to particles outside the event horizon. That means a graviton has to violate causality and entropy because it has to travel faster than C to convey its force to particles outside the event horizon. While we don't know how gravitons or gravity works, the fact is that space and time are looped into a (from an interior observers perspective) closed universe within that event horizon. No vector line within an event horizon leads out. Since black holes do have gravity, the question I have to ask is... how? A second question I have is: If gravitons can escape, then can't we also invent FTL communication by wiggling some mass around and using a detector to detect it at what must be faster than light speeds, allowing us to send messages faster than C?