Transcript
A tweet by Ivanka Trump @ivankatrump saying "I cannot believe that Theodore is eight months old today! Happy birthday little teddy bear!" with an admittedly cute picture of a child smiling. It has a reply from @blacknmild saying "this isn't how birthdays work"
No, that’s not true. A birth week recurs yearly, not weekly.
A birth day is the day on which you were born, say Saturday, and you’ll have one of those every week.
A birth week is the number of the week in which you were born, say week 14, and it takes a year before it’s week 14 again. Same interval as a birth month.
A birth date only occurs once. It’ll never be July 4, 1981 ever again.
This is all very normal and logical. Beep boop.
No, no. You see, the time period indicates how often you celebrate. This is why it's perfectly normal for OP to celebrate the baby's every month. (Why are we doing this? Oh, right facepalm)