Depends on what you mean by "deterministic" (and "universe").
1) Do you assume each interaction has only one outcome, or are multiple outcomes (in different Everett branches) possible?
2) Do you assume all universes started in the same state? Molecular interactions in an existing universe are a different topic than the "creation of the universe".
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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