Whatever we do on this earth outside, remains somewhere in the universe unless where you are is dark and provides no light.
Now, light travels at close to 300 million m/s. If you waved, and you were in the correct place in space with the most powerful telescope, you'd be able to see that wave. Here's the most interesting part. Theoretically it is possible to see events happen more than once, that is again, if you are correctly located in the universe.
People of TSR. Everything you do is somewhere in the universe, you just need light! Write your story today, how would you like to be seen by other people in the universe. Change the way you think!
...Should I go back to school?