Think of our milky way galaxy as a flat disk of diameter 100,000 light-years. suppose we are one of 1000 civilizations, randomly distributed through the disk, interested in communicating via radio waves. how far away would the nearest such civilization be from us (on average)?

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

wavelength divides in half and speed stays the same.