Looking at the wikipedia I see "In 1949, Hungary was declared a communist People's Republic (People's Republic of Hungary). ... After Nagy had declared that Hungary was to leave the Warsaw Pact and become neutral, Soviet tanks and troops entered the country to crush the revolt. Fighting continued until mid November, leaving more than 3000 dead."
So arguably, he knows better about how it is living under that kind of regime than most of people.
Lenin Stalin and Mao were some of the best read scholars of their era who made genuine efforts to make communism happen.
They couldn't, not because they did not understand communism, but because communism didn't understand the world it was trying to be a solution for.
Humans are hedonistic and insecure beings for whom status games lie at the core of their existence. In the absence of inequality, there are no humans. For the potential difference is what makes sure the blood, sweat and tears flow in a certain direction.
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There in lies a great equivalence between fans of communism and agile.
You cannot create a productivity system for knowledge work if you do not understand knowledge work.
Agile starts with trying to solve a problem that it assumes exists, without ever questioning if its central assumptions have any validity at all.
The reason it wasn't communism, or even socialism at all, was the fact that *the workers did not own the means of production*. Whether or not you like the idea of communism or not, it's dishonest to call the totalitarian states of the 20th century "communist". They were authoritarian state-capitalists.
This leads me to believe that the author of this article maybe actually didn't understand agile as much as they thought they did.