Temi, Adso, i profeti e coloro disposti a morire per la verità, ché di solito fan morire moltissimo con loro, spesso prima di loro, talvolta al posto… - Umberto Eco

This has nothing to do with realism (even if it explains also realism). A completely real world can be constructed, in which asses fly and princesses are restored to life by a kiss, but that world, purely possible and unrealistic, must exist according to structures defined at the outset (we have to know whether it is a world where a princess can be restored to life only by the kiss of a prince, or also by that of a witch, and whether the princess's kiss tranforms only frogs into princes or also, for example, armadillos).

I am not saying that philosophies, since they are speculative, speak of the nonexistent. When they say 'subject' or 'class struggle' or 'dialectics', they always point to something that should have been defined and posited in some way. Philosophies can be judged, at most, on the grounds of the perspicacity with which they decide that something is worthy of becoming the starting point for a global explanatory hypothesis. Thus I do not think that the sign (or any other suitable object for a general semiotics) is a mere figment.

The rest is just sex, copulation, the perpetuation of the vile species.