Vlad,
If all elements in the hierarchy are contingent then logically, the question remains " What is it they are contingent on".
The “elements in the hierarchy” are the component parts of the universe, and to some degree at least they appear to be contingent on each other.
Y our solution evades the answer.
What solution – I haven’t offered one? Nor do I need to. All I do need to do is to identify your mistake of relying on the fallacy of composition – ie, asserting that the parts of the universe being deterministic in character implies that the universe as a whole must also be deterministic in character. It doesn't.
Just like your previous solution,…
Again, I haven’t proposed a “previous solution”.
…the infinite regress never answers the question.
Infinite regress is a problem for you, not for me. I stop at “don’t know” because it’s the only honest response I can give. A “don’t know” doesn’t create an infinite regress. You on the other hand assert (albeit erroneously) a “necessary” god, which then relocates the same question of “whence the universe?” to “whence god?”.
Your only options in reply are another “don’t know” (which adds nothing of explanatory value to my “don’t know”) or “it’s magic innit?” which opens the infinite regress problem – you’ll need more gods all the way down.
Further to this a circular hierarchy means that each component is the reason for its own existence, a characteristic no atheist here is willing to acknowledge or attribute.
You are suggesting that a circular hierarchy is the status quo
That creates the absurdity of "contingency" only.
You’ve collapsed into incoherence again here. What are you trying to say?