The ideology of the Blank Slate helps explain some of the features that were unique to the Marxist states: If people do not differ in psychological traits like talent or drive, then anyone who is better off must be avaricious or larcenous (as I mentioned earlier). Massive killing of kulaks and “rich” or “bourgeois” peasants was a feature of Lenin’s and Stalin’s Soviet Union, Mao’s China, and Pol Pot’s Cambodia.

