Comment by rdtsc

> which is, by the late 1970s at the latest, or practiced pure Stalinism where everyone who wavered, got purged in an instant and thus generations kept being genetically filtered for obedience.

That’s a good point. The system worked so “well” before, during and a bit after WWII was because of the absolute terror and demand for obedience. With the willingness to kill, enslave, starve and terrorize people by the millions, one can achieve “great” economic results and military victories.