Every physical theory postulates the existence of some fundamental constituents of reality that cannot be reduced further.
I’ve heard one that doesn’t. It was agnostic on the subject and speculation on what the reason was for having indefinite layers of ‘more fundamental’ was outside the scope of the theory (like a ‘first cause’). It did qualify as a physical theory (but certainly isn’t mine.)
I’ve heard one that doesn’t. It was agnostic on the subject and speculation on what the reason was for having indefinite layers of ‘more fundamental’ was outside the scope of the theory (like a ‘first cause’). It did qualify as a physical theory (but certainly isn’t mine.)