Back in the day, if you were to give a letter to a carrier pigeon, how would the pigeon know to deliver the letter to Maggie McDoodle over at 24-102 MacFerggle Street (or whatever)? How did the pigeon know who the proper recipient of the letter was? And was it common for pigeons to accidentally deliver a letter to the wrong contact?
If you wanted to send me a letter you’d visit me and borrow one of my pigeons. Attach the letter to the pigeon and it’ll fly back home to me