It&#x27;s perhaps not altogether useful to regard c as a speed. Or rather you should redefine your idea of speed. It&#x27;s a universal constant relating matter to spacetime. Time is a length measurement, and you&#x27;re already moving at c in that dimension. If you start accelerating then you are trading time velocity for spacial velocity, so as you approach c your movement through time approaches zero.<p>&gt; does that really mean that space is really so constantly twisting and turning that SOL can&#x27;t be exceeded?<p>The speed of light stays the same and both time and space twist and turn around it. It&#x27;s weird, but having a preferred reference frame would be just as weird. c is a dimensionless constant, and light happens to travel at that speed because it has no rest mass.