Demarcating theology, or, what not to post to Philosophy of Religion What else can we conclude? If I know the fundamental workings of the universe, how can you explain then where the fundamental came from, or why? — Hillary
First of all we need to ask ourselves. "Do we really know the fundamental workings of the universe".
The answer should sound like...."it appears so". At least the working we have recognize appear to play a Necessary and Sufficient role in our explanations of how the Universe get to be the way it is.
IS it enough to know the workings of our universe? No because the underlying cosmic field we detect (Quantum Fluctuations) show us that the story doesn't end with the understanding of our universe alone.
Now by trying to produce observations on a cosmic level, like we did with the Nobel Awarded observations of the Cosmic Quantum Fluctuations) we can produce models that could explain better the nature of the fundamental workings of our universe.
That said our current answer should be "we don't know"..and we don't know if we ever will.
I should point out that asking "Why" questions about the workings of Nature is a useless and fallacious endeavor. "Why" (assuming intention purpose and planning) is a "good" way to pollute the question you are asking (poisoning the well fallacy). Teleology needs to be demonstrated not assumed.
So I will keep your "How" question and linked it to my answer "we don't know" plus I will need to know which aspect of this "fundamentality" you are referring to?