ALT Image of the xkcd comic. First panel has text box saying "I try not to make fun of people for admitting they don't know things." Explains that since everyone starts knowing nothing, for everything that "everyone knows" by age 30, about 4 million learn it every year, so about 10,000/day are hearing it for the first time. Second panel is example where character says "you're one of today's lucky 10,000"