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- Is it there any model or theory (related to cosmology) that postulates a sum over all possible laws of physics?

Hawking and Hartle proposed a well-known model which postulated a sum over all possible histories considering all compact euclidean metrics to explain the origin of the universe (this is called the No Boundary model).

I was wondering whether there is any model or theory (related to cosmology) that postulates a sum over all possible histories of the universe with all possible laws of physics? I mean, any model similar to the No Boundary proposal by Hawking and Hartle but not only considering all the possible laws from all compact Euclidean metrics, but considering all the possible laws of physics that we could model or think of?

I was wondering whether there is any model or theory (related to cosmology) that postulates a sum over all possible histories of the universe with all possible laws of physics? I mean, any model similar to the No Boundary proposal by Hawking and Hartle but not only considering all the possible laws from all compact Euclidean metrics, but considering all the possible laws of physics that we could model or think of?