Nobody questions the fact that 2 + 2 is 4. One may argue about the grammar of the way it is stated, but we all know that “this combination” equals “this sum.”
Pure science is not made up of theories; it is a body of facts we can count on. Even the grammar of English is made up of rules embedded in cement. However, literature, writing and poetry are more ephemeral, more open to interpretation. Writers love to play with language because they can make it say whatever they want it to say.