For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some ‘organic element’ since I couldn’t accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.
it’s not part of the paradox, but there are also days when people tend to have more sex
like new years, valentines, christmas etc. (in the west at least)
so you tend to get more people born 9 months after those days
! I just assumed, lol
They have an episode where they talk about the birthday paradox and then follow it up with talking about how the math isn’t 100% correct as applied to humans bc birthdays aren’t normally distributed.