More important, the Soviet mental software has proved much more durable than the ideology itself. When, in 1989, a group of sociologists led by Yuri Levada began to study what they called Soviet Man, an artificial construct of doublethink, paternalism, suspicion and isolationism, they thought he was vanishing. Over the next 20 years they realised that Homo sovieticus had mutated and reproduced, acquiring, along the way, new characteristics such as cynicism and aggression. This is not some genetic legacy, but the result of institutional restrictions and the skewed economic and moral stimuli propagated by the Kremlin.