Why is Blade Runner Post Modern? "presentation"

Ridley Scott’s Blade Runner, 1982, did not do incredibly well at the box office when it was first released but it has become a cult classic because of its dystopian science fiction.
The film itself is said to have a post modern aesthetic, by mixing textual references and images, while the film noir genre is juxtaposed with the futuristic dystopia within the film, as well as time manipulation through the use of 1950’s film conventions set within the future.
Set in 2019, Los Angeles, the setting is a pastiche of ideas of the east, the West and the future, while the storyline deals with replicants, synthetic humans who long for an extension to their life span.
The film brings about many questions such as Can emotions be programmed? Can humanity be manufactured? The same question postmodernist ask about hyper reality, and how we cope with the world around us. The post modern Los Angeles advertises the perfect utopia through huge advertisements promoting the off world colony and the idea that everyone has left the ‘real world has left for a more attractive world.
The film deals with the issue of time and the lack of it. The replicants are young, but their bodies age as a timer has been set to prevent replicants developing emotions. As Roy dies he says “All these moments will be lost in time like tears in rain.” This forces the audience to confront the way in which the modern world is constructed through binary opposites, truth and lies, reality and fiction, human and machine, life and death, good and bad.
Blade Runner uses strategies of pastiche, recycling, hyper reality and identity crisis, while confusing history and mixes up traditions and cultures such as the juxtaposed roman and Greek columns, Chinatown and Egyptian and Mayan pyramids, while confusing the difference between the real and the mediated, and portrays what it is like to live in a post modern world.

Blade Runner also poses the question to “Is Deckard a Replicant?” While Harrison Ford said that he didn’t think that Deckard was a replicants and that him and the director agreed at the end of the film that Deckard was human. However according to interviews with Ridley Scott; Deckard is a replicants.
However it could be suggested that Deckard is a replicants as he fails to show emotions throughout the film, like when he kills the replicants as well as during the rape scene with Rachel, however towards the end he develops emotions for her. It is suggested that a fault with the replicants allow them to develop emotions, they are not created with emotions. Deckard could also be a replicant as Rachel was manufactured and then given someone else’s memories and she is unaware that she is a replicants, this could explain why Deckard would think he is a human.
It is suggested that Ridley Scott thought it would be more provocative to imply that Deckard is a replicant with no reason, as it ties in with the theme of What is it to be human?