One fantastic thing about the Greeks (and you find it elsewhere in Europe before the Christian Fanatics took over), is that they viewed their gods as allegories for humans, both in human flaws and in human greatness. Deity as a celebration of humanity, to a certain extent. Gods were handy mirrors and metphors to use to introspect on humanity.

In fact, it was a wonderful mythological system in which humans could pass moral judgements on the gods, and in many of the myths, the gods 'got what they had coming to them'.

Its a fundamental difference between how the 'Book' religions from the levant envision deity and how the old pagans used to.( And even though the christians did what they good to obliterate the worldview manifest in that sort of theology, I think we can the origins of a lot of our American culture back in those roots.)

So when we talk about theologies/theogonies taking over and repressing cosmologies, we should be careful not to impose our christian notions of what that means.

(Disclaimer: What follows is all what I remember from rusty old philosophy training many years ago)

Beyond that, the actual uncertainty in greek thought is an old dichotomy that the greeks never gave up pondering and going back-and-forth on. And it is primarily a secular one: Is the world in itself and without the vagueness of interpretation, that is to say in its fundamental state, a dynamic changing thing where perception yields the illusion of perfection or is it an eternal unchanging thing where perception yields the illusion of flux. Heraclitus would be an excellent pre-socratic example of 'the universe as flux', and Parmenides/Zeno would be a perfect example of 'the universe as immutable and eternal'

For the Greeks, this was a pretty big thing, as I understand it. It was kind of like asking if there is truth or is truth just an illusion (the Greeks could not 'get with' a notion of truth that wasn't eternal and perfect- understandably!).

Later, thousands of years later, we arrive with modern mathematics and empirical science to understand that (like most dichotomies) the dichotomy was just a limitation of knowledge. Abstract (as good as) immutable physical laws articulate the order of the cosmos, but the cosmos itself is in continual flux. (of course, that last statment has MASSIVE caveats and bells-and-whistles attached, but its essentially the case)

But for the greeks, it wasn't explicitly a choice between a god-created world and a godless-world, it was their thinking shifting between two mutually opposed but demonstrably true / logically valid perspectives.

Davin :.