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val70 Well......suggested that book precisely cos it´s far from being classical utopian literature.
It´s instead a reflection on the contradictions two societies / cultures, inner ones and between them.
And the simultaneous contradictions between individuals and their social frame.
As you (in other words) said, unity and conflict. What is also known as Dialectics.
Le Guin (and some of her characters) were / are (like Simone Weil) anarchists. And she, Ursula, stongly influenced by a variety of Taoism.
But she also seems to have (by the insights of one of her main characters, a physicist) a good familiarity with at least one historical formulations of the Quantum: the Bohm - De Broglie.
Interesting that Bohm, a realist, had a strong interest in both Taoism and Jung!