[frandroid]

Also difficult to run a modern society when you purge people capable of critical thought.

[vkou]

Seems to work just fine for most state operations. The people really capable of critical thought will quickly learn to keep their mouths shut.

[yardie]

Or they will leave.

Cuba is in the shape it's in because the industrialist, knowledge workers, business owners, all left. I honestly believe the revolution started with good intentions, then began to turn more authoritarian. And finally, stacked the ranks with incompetent loyalists.