[Image: an XKCD comic, in two panels:
1. ‘I try not to make fun of people for admitting they don’t know things. Because for each thing that ‘everyone knows’ by the time they’re adults, every day there are, on average, 10,000 people in the US hearing about it for the first time.’
A series of statements breaks down the math for readers:
‘Fraction who have heard of it at birth=0%
‘Fraction who have heard of it by 30~100%
‘US birth rate~4,000,000/year
‘Number hearing about it for the first time~10,000/day’
2. ‘If I make fun of people, I train them not to tell me when they have these moments. And I miss out on the fun.’
Two stick figures have a conversation:
A: ‘Diet Coke and Mentos thing’? What’s that?
B: Oh man! Come on, we’re going to the grocery store.
B: You’re one of today’s lucky 10,000.]