those old world systems could never lead to a world where every last person is happy, (which I suppose would be the definition of a utopia). So to restate my question from earlier a bit more clearly, do you think that there could be a system of economy or administration that could lead to that? — TogetherTurtle
Utopias have their attractions, but there is a hidden flaw in utopian schemes: Once everything is perfect, everything must stay perfect, and in order to stay perfect, everyone and everything must remain static. Life, given its chaotic nature, is disruptive and things don't stay static for long.
There are non-utopian schemes which might make people happy, but there is yet another problem: People are sometimes extremely unhappy despite themselves. Discontents, mental illnesses, physical ailments, injuries, and so on can leave people unhappy.
The best we can do is design a society where there is a good chance of most people being reasonably happy much of the time. Quite a few systems have achieved something of the sort. What do they have in common? (This is all pure speculation, you understand, prepared from notes written hurriedly on the cuff of my shirt sleeve.)
a) Social conditions are stable, but not rigidly fixed.
b) Social mobility (upward and downward) is possible.
c) Economic measures indicate steady growth with occasional recessions, but no booms or busts.
d) Population growth is at a moderate rate, in line with the economy
e) Public education is excellent, producing a literate, culturally capable population
f) There are no aggressive enemies
g) Government is efficient, honest, and effective
h) Religion tends to be tolerant, flexible and moderate in its demands
i) Industry is conducted on a socialist model, agriculture on a family farm model.
.....
You'll note an emphasis on stability, moderation, good government, excellence in education and 'liberal' religion. This is the sort of society that I think the largest number of people can be happy in. The conditions described are more likely to exist in an economy that is collectivist rather than highly competitive and acquisitive (which is what we have now).
Within this society there will still be unhappiness, but the causes should not issue from the nature of society itself. Our society tend to drive people crazy.
This will probably prove disappointing. It's not much of a utopia -- just something people could live with.