Is there any inflationary model without a fundamental theory?

[Suekdccia]

TL;DR

Is there any inflationary model which does not assume that there is only one fundamental theory?

Cosmological inflationary models are general models in the sense that they could be applied to a variety of fundamental theories. Most physicists working in inflation assume that there is only one (but yet unknown) fundamental theory which through inflation would produce multiple regions or "universes" with different effective laws of physics (but with the same fundamental laws, which come from the fundamental theory).

But are there any physicists or models in inflation which explicitly assume that there is not a unique fundamental theory and therefore these regions could be described by different theories with their own laws of physics?

 

[Vanadium 50]

I don't think that is logically possible. Isn't "things behave this way over here and that way over there" itself a theory?

 

[PeterDonis]

are there any physicists or models in inflation which explicitly assume that there is not a unique fundamental theory and therefore these regions could be described by different theories with their own laws of physics?

What would this even mean?