is designed to appear human, his innards are bio-mechanical and he himself does not presume to be a sentient being with a semblance of life, but an artificial construct whose personality is dictated by machinery. Every subsequent installment in the Alien film series directed by Scott features at least one synthetic (android) character designated to maintain order aboard their respective space ship. In 2017, Scott explained that the synthetics featured in the Alien films he directed are designed to subvert their robotic nature and to impeccably mimic humans. The original form of androids introduced in Alien would contradict the observable nature of David in Prometheus; though both would serve the same corporate masters and have the same non-human innards, David would identify himself as a sentient entity who is capable of expressing—if not feeling—emotion. In between the time Scott released Alien in 1979 and returned to the franchise with Prometheus in 2012, he directed another notable science fiction film concerning artificial intelligence, Blade Runner, in 1982. Contrary to the white-blooded androids of Alien that emulate emotions and recognize a disconnect with humanity, Blade Runner features the replicants, enhanced biorobotic humanoids that may only be identified by their lacking emotions. In order to maintain control, the replicants' human creators install false memories that detail entire lives that give them a sense of identity. Blade Runner, an influential film, has prompted a slew of philosophical questions concerning artificial intelligence and whether or not an android could truly be considered alive. The film specifically questions whether thoughts, a sense of identity, emotions and consciousness in general, may be something genuine when applied to artificial intelligence. Due to David identifying himself as a living entity—similar to the replicants—film critics in 2012 would come not to only question if Prometheus was a direct prequel to Alien, but if the film had a relation to Blade Runner. A number of models for testing artificial intelligence have been noted by philosophers as being relevant to the themes present in Scott's filmography. The test most commonly associated with artificial intelligence in his work is the Turing test, created by the British computer scientist Alan Turing. Turing's argument was that there is no significant difference between a human and an android, which would be apparent when a human would be unable to identify if the individual they are communicating with is a human or android. In Blade Runner, the