Sorting and delivering mail is like typing—to do it efficiently, you have to be able to do it faster than you can think about doing it. A typist who carefully taps each individual key and confirms the result on the screen will take a lot longer than one who lets his fingers fly over the keys without looking. Press a hunt-and-peck typist to put out as many pages per hour as a touch typist and the result will be an awful lot of typographical errors. After sorting the same case day after day, a postie can sort as automatically and almost perfectly as a touch typist can type. But sorting a strange case is like typing on a non-QWERTY keyboard. Until you learn the new layout, even the best typist or sorter has to go back to hunt and peck. So you make exponentially more mistakes on an unfamiliar case or route than you do on one you already know. And depending on when and where you are, you might have to integrate machine-sorted into your sequence of hand-sorted mail, and machines have their own ways of making mistakes.

But as far as the misdelivery where the name, address, and city are all wrong