My reasoning is that the period is a "stronger" punctuation mark than the comma, and it should be used for the more important separation.

https://en.wikipedia.org/wiki/Decimal_separator

  • GayRichMac [he/him]
    ·
    24 hours ago

    In a sentence, the comma denotes a continuation of that sentence, whereas the period means full stop. Why should it be different for numbers?

    A comma means you are continuing on the whole part of the number, whereas the period means the whole part is over, now on to the fractional aspect.

    • bunnygirl [she/her]
      ·
      22 hours ago

      I mean, wouldn't that lead you to spaces and commas being the actual choice

      after all, both space and commas continue sentences in different ways, but a full stop ends a sentence, so why would you use it in this context to actually continue the same number

      • Gaia [She/Her]@lemmygrad.ml
        ·
        3 hours ago

        Because without a visible delineator readability rapidly declines. Using space means the reader has to interpret each page with regards to its kerning