The Duality of Time Theory, that results from the Single Monad Model of the Cosmos, explains how multiplicity is emerging from absolute Oneness, at every instance of our normal time! This leads to the Ultimate Symmetry of space and its dynamic formation and breaking into the physical and psychical (supersymmetrical) creations, in orthogonal time directions. General Relativity and Quantum Mechanics are complementary consequences of the Duality of Time Theory, and all the fundamental interactions become properties of the new granular complex-time geometry.
Welcome to the Single Monad Model of the Cosmos
Most of these introductory articles are exracted from Volume I of the Single Monad Model of the Cosmos: Ibn al-Arabi's View of Time and Creation... more on this can be found here.
For most physicists, there is no fundamental explanation as to why the speed of light is invariant and that nothing can ever travel faster than light, but it is considered an axiom that has been experimentally verified but not yet proved in any philosophical way.
Logically, there are two cases under which a quantity does not increase or decrease when we add to or subtract something from it. Either this quantity in infinite, or it exists in orthogonal dimension. Both these cases are correct for the speed of light!
The speed of light is originally infinite (or indefinite, to be more precise), and this can be even deduced from time dilation and space contraction (so for light we have dx/dt=0/0), but the reason why we measure a finite value of it is because of the sequential re-creation of space (which is one of the principles of the Single Monad Model and Duality of Time Theory); so individual observers are subject to the time lag during which the dimensions of space are being re-created. Moreover, since the normal time is now genuinely imaginary, a more detailed mathematical treatment will show that the velocity of physical objects are always orthogonal onto the real speed (of creation) that is the speed of light.
The other two principles of special and general relativity can also be deduced from the Duality of Time Theory. Please see this video for more details: https://www.youtube.com/watch?v=FMLZIr7dWLo .