I think that under all forms of government powerful people are going to try to accrete more power to themselves. Difference of outcomes therefore are based in the ability to restrict that.

A benevolent dictatorship cannot exist et alia because a person cannot live for ever and I simply don't know how you could assure that the transition from one benevolent dictator to another when the first one ceases to be competent. For instance, let's presume that Xi Jinping is the perfect president of China. When he dies or retires or becomes too ill to govern, will the PRC be able to select a new perfect president to replace him? or will they choose someone who is inclined to serve their own interests and was able to benefit from Xi's time? This is the ultimate problem of a benevolent dictorship: it cannot assure state continuity and stability beyond the effective lifespan of the dictatorship.

People also tend to become more habitual as they do something for a long time. Politeness and friendships limit them from being able to introduce policies that will benefit the country at the expense of those who have their ears. So it's possible that a governing style which served the state and the country well for many years will need hard revisions. Periodic changes in governor (as democracies have) mean it's more likely the incoming team will be able to retain what is still fresh and discard what is now stale, and they will be connected with different people and therefore not too worried about upsetting some of them. (I think this is a good part of what's wrong at the moment: major parties around the world are connected too much to the same interests, so a change of government doesn't result in as much upset as needs to happen. Votes will gradually transfer from the establishment to the anti-establishment parties. They will be able to upset the entrenchment, but it remains to be seen whether they will do so in the interests of the nation or the interests of an alternative elite.)

As for your last sentence, I think I misunderstand it. I disagreed with you and straightforwardly stated my opinion, and then it seems that you attacked me: it reads like you're accusing me of not being able to handle disagreement. I don't think I attacked you. Perhaps you would clarify it, or highlight the place where you think I "don't take too kindly to disagreement".

> A benevolent dictatorship cannot exist et alia because a person cannot live for ever and I simply don't know how you could assure that the transition from one benevolent dictator to another when the first one ceases to be competent. For instance, let's presume that Xi Jinping is the perfect president of China. When he dies or retires or becomes too ill to govern, will the PRC be able to select a new perfect president to replace him? or will they choose someone who is inclined to serve their own interests and was able to benefit from Xi's time? This is the ultimate problem of a benevolent dictorship: it cannot assure state continuity and stability beyond the effective lifespan of the dictatorship.

Agreed, this is why a dictatorship is generally not a wise idea. I certainly cannot assure a transition to another benevolent dictator, but what's interesting if you peruse the comments here, the overwhelming sentiment of people is that they can assure that a successful transition can not and will not happen, ever, full stop. As you may have noticed, I often have a bit of an issue with self-proclaimed mind-reading, future-telling, and other supernatural capabilities. You would expect this sort of thing among the general public or on Reddit, is it too much to ask for a higher standard on HN? It would seem so.

As for my last sentence, admittedly I'm guilty of taking out my frustrations with HNers in general (for the above stated reasons) on you, in response to your absolutist stance (No benevolent dictatorship has ever existed); perhaps no major nation in recorded history been led by a purely benevolent dictator, but if we had access to a truly omniscient being to settle this disagreement, I'd happily throw down a $100 wager that many truly benevolent (to the best of their abilities) dictators have led smaller, less famous groups of people on many occasions throughout history. Perhaps I have too much faith in humanity at its best.