Circulus, full name Circulus Theory, is a Left Unity, socialism-based economic system who is a product of Utopian Socialism and is a bastard son of Agrarianism. He wants to resolve the Malthusian Catastrophe by collecting human feces as taxes. According to Circulus, human excrement has remarkable fertilising properties, which society fails to harness.
Fucking hell thank God I hadn't just hallucinated that
To an extension, Juche may also be part and parcel of that