Apparently, radio waves broadcast out into space. So what if Earth is the planetary equivalent of that arsehole neighbour blasting shitty music at 3am?
It takes light-years to reach anyone capable of picking it up, but when they do it’s like we’re playing Skrillex, Beethoven, the Wiggles and Metallica simultaneously, at full volume with maximum bass.
Imagine Earth’s first contact being the intergalactic equivalent of Noise Control showing up to make us turn down our damn stereo so the rest of the galaxy can get some sleep.