Different physical theories have different, only partially overlapping domains. Constructing theories with a greater domain of validity in one parameter comes at the costs of shrinking the domain of validity of other parameters. This is necessarily the case because of the ontological plurality of physical reality. ‘The World’ as conceived as an entity with a unique structure does not exist. A fundamental, all comprehensive theory of physical reality does not exist, because The World does not exist.
Frank Pohlmann