the task of writing
in a scientific thesis, one fails to relate A to B logically, empirically, and so A and B are unrelated.
But in a semiosic work, that very performative act of trying to relate A to B succeeds, even when demonstratively A and B cannot be shown to imply one and the other. For when struggling to establish such relations, one thinks of A in connection with B. That very struggle realises, fulfills that connection, even if on paper the relation between A and B is predicated negative, with a not, so that A is not well connected to B.