Whenever I apologize for something I focus on getting the details right. If you get the details wrong then it might sound insincere or as though you are thinking about something else. Sometimes I can't remember the details so I like to keep apologies very general and vague. Today's card, for example.
Sometimes we have to apologize. Sometimes, even when any impartial, highly-educated expert would firmly agree that you are right and the other person is sadly bereft of facts and utterly adrift in a sea of confusion, we have to apologize. This card is for those moments.