The Onion nails the details in a piece called This American Life Completes Documentation Of Liberal, Upper-Middle-Class Existence:
Producers of the long-running Chicago Public Radio program This American Life announced Monday that they have completed their comprehensive 12-year survey of life as a modern upper-middle-class American.
In what cultural anthropologists are calling a "colossal achievement" in the study of white-collar professionals, the popular radio show has successfully isolated all 7,442 known characteristics of college graduates who earn between $62,500 and $125,000 per year and feel strongly that something should be done about global warming.
"We've done it," said senior producer Julie Snyder, who was personally interviewed for a 2003 This American Life episode, "Going Eclectic," in which she described what it's like to be a bilingual member of the ACLU trained in kite-making by a Japanese stepfather. "There is not a single existential crisis or self-congratulatory epiphany that has been or could be experienced by a left-leaning agnostic that we have not exhaustively documented and grouped by theme."
Added Snyder, "We here at public radio couldn't be more pleased with ourselves."
Read the whole hilarious thing.