Physicist: The best way to think about it is; there is a speed (C) that is the fastest speed and, by the way, light goes that fast. There’s nothing special about light, it’s just a useful way of describing C (“the speed of light”). So the speed of light must also be independent of how fast you’re moving. If you’re driving down the highway and you’re moving faster than the car in front of you, then eventually you’ll pass that car. But no matter how much you speed up, the photon will always be moving away at the speed of light.