“Johnny Carson” was, almost in totality, the entire construction of watching television late at night. Everybody knew this, even if they didn’t own a television. It was a specific piece of knowledge that all Americans had in common. Obviously, that could never happen today. There will never again be “cultural knowledge” that everybody knows, mostly because there is simply too much culture to know about. A few years ago, the OutKast song “Hey Ya!” was wildly popular, and it seemed to have an uncommon social reach; white people liked it, black people liked it, advertisers liked it, communists
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