The speed of light is a limit of speed. Could it be that this limit is based on the refreshrate of the universe? Perhaps you wouldn't be surprised to hear that I make games, and if you want something to go smoothly instead of skipping pixels you make it go one pixel at a time, and if you have a good refreshrate then it will go decently fast. My guess is that the Universe don't skip "pixels", so the fastest that something can ever go is one pixel at every "refresh" and this would then be the speed of light. Okay I know that the universe doesn't have a specific "refreshrate" but if you think about it, it does have a minimum amount of time, in which a moment cannot get any smaller; the planck length of time, which is: 5.391 24 × 10^−44 s and which happens to be the time it takes for light to go one planck length (which is the smallest length). So this is the refreshrate of the universe! 1,8518518518518518518518518518519e+43 frames per second! Eureka!