Its not that anything can’t move faster than light, it’s simply that light moves at maximum velocity. Other things like gravitational waves do so too, light just was the first and easiest thing to be observed doing this so light speed was named after it.
The reason for that is that it weighs nothing, as it weighs nothing even the lightest touch propels it infinetly strong and it has to move at maximum speed.
On the same note the speed of sound is simply the speed of matter interaction or how fast material can push itself, that is why the speed of sound in water is faster as it almost can’t be compressed.
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