our universe. I don't know if I misunderstand your question. (If you think the laws/models are discovered by human being, that's fine. This is just philosophical argument). Unfortunately our laws can't describe the initial state of our universe (beyond space-time).
I also tend to believe different universes have different laws of physics, because each universe's initial state is different even though I don't know what the initial state is. Different Initial conditions lead to different evolution of universes and therefore lead to different kinds of physics for each universe. Just my pure speculation.
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