Everett's Many-Worlds Interpretation Viewed Through Systemic Functional Linguistics

Davies & Gribbin (1992: 219-20):

This is where the many-worlds interpretation seems to force itself on us. In terms of serious physics, as opposed to the pages of science fiction, the idea dates from 1957, with the work of an American, Hugh Everett. It has since been refined by others. As we remarked earlier, the many-universes theory resolves the cat paradox by supposing that the Universe divides into two copies, and both then coexist in parallel with each other. There is thus no impediment to applying quantum mechanics to the entire Universe, if we are prepared to entertain the rather fantastic notion that the whole Universe is continually splitting into countless copies, each in a slightly different state, one for every possible outcome of every possible quantum interaction. The Everett theory suggests a sort of multiple reality, in which an infinite number of entire universes coexist. Bizarre though this may seem, the actual mathematical formalism involved is identical with standard quantum mechanics. The novelty of the theory concerns only the interpretation of the quantities that appear in the equations.

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From the perspective of Systemic Functional Linguistic Theory, the many-worlds interpretation mistakes potential for actual, misconstruing potential instances as actual instances.