I think Moloch is a metaphor for the actual, uncaring and often hostile universe
Well, not THAT wide :-)
My thinking about Moloch is still too fuzzy for good definitions, but I'm inclined to to treat is as emergent system behavior which, according to Finagle's Law, is usually not what you want. Often enough it's not what you expect, too, even if you designed (or tinkered with) the system.
The unicorn is also narrower than the whole should-universe -- specifically it's some agent or entity with highly unlikely benevolent properties and the proposal under discussion is entirely reliant on these properties in order to work.
My thinking about Moloch is still too fuzzy for good definitions
Moloch is based on the neo-reactionaries' Gnon. Notice how Nyan deals with the fuzziness by dividing Gnon into four components, each of which can be analyzed individually. Apparently Yvain's brain went into "basilisk shock" up on exposure to the content, which is why his description is so fuzzy.
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