• xkbx@startrek.website
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    1 day ago

    When you’re born, you’re not 1. You turn 1 at the end of the year. When you are born, you are 0 years old. Birth marks age, but birth itself can extend between two dates - labour can start on a Monday, but end on a Tuesday. Then there’s also the fact that there’s a common mistake people make - the difference is not the same as counting something.

    Let’s say you’ve collected some volumes of a book series. You’ve collected volumes 17 through 21. How many volumes did you collect?

    If you do 21-17, you get 4. However, that’s the difference between 21 and 17.

    If you list it out and count it, you have FIVE volumes, not four.

    17 18 19 20 21

    It’s really about how you calculate values and mark it. If you are born on Jan 1st, 2010, you don’t turn 1 until you reach Jan 1st, 2011. However, if you’re born in August 1st, 2010, you haven’t turned 1 on Jan 1st, 2011.

    • Zagorath@quokk.au
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      14 hours ago

      When you’re born, you’re not 1. You turn 1 at the end of the year. When you are born, you are 0 years old

      Like the other user says, it depends on culture. Traditionally in Korea, when you were born you were 1, and then you add one to your year on the 1st of January. So yes, you could end up being 2 years old when you are less than one full week old. One way of thinking about it is as though the question “how old are you?” was actually asking “how many calendar years have you been in?”

      3 years ago today (by coincidence), the government officially forbade the use of this traditional system for almost all official purposes, favouring the international system of being 0 at birth, increasing by 1 each birthday.