- The barber paradox is a puzzle derived from Russell’s paradox. It was used by Bertrand Russell as an illustration of the paradox, though he attributes it to an unnamed person who suggested it to him. The puzzle shows that an apparently plausible scenario is logically impossible. Specifically, it describes a barber who is defined such that he both shaves himself and does not shave himself, which implies that no such barber exists.
- Alien (franchise) (allthetropes.org)
A multimedia franchise and the first to successfully combine science fiction with Body Horror and actually make it scary, instead of cheesy. The franchise spans several comic books, video games and foremost a tetralogy of films, each with a different visionary director and all starring Sigourney Weaver.