The erasure of socialist ideas from serious political discourse throughout most of my life wasn’t a historical fluke. The West’s victory in the Cold War—liberal democracy for everyone!—came at the price of iconoclasm, much of it celebratory. In Prague, there used to be a giant socialist-realist statue of Stalin and other communist leaders standing in a line on a hill overlooking the city from the north. Czechs called it the “meat line,” a joke about the long lines they had to wait in to get groceries. Now kids skateboard on the platform where the dictator once kept watch. To visit Prague now—or Budapest, or Sofia, or Bucharest, or Berlin—you might think that communism never happened. All that’s left are a few tacky museums and somber monuments.