you can argue that the inclusive counting thing is a legitimate convention but consider: after the introduction of the Julian calendar, for the next 34 years the priests in charge of the calendar got confused and added a leap day every third year instead of every fourth.
reminder that scientists are exploring the seafloor of the Mar del Plata canyon via remotely-operated submarine and livestreaming it https://www.youtube.com/watch?v=lcM82Srz8TE
🧚♀️🐮