J'ai beau adorer Blade Runner, tout n'y est pas parfait. Mais c'est la force des grands films que de savoir faire oublier leurs quelques errements face à la somme des prouesses qu'ils enchaînent. Et Blade Runner est clairement de ceux là.
En se penchant sur le script d'origine, on comprend également mieux certaines choses qui semblent avoir été laissées dans le film, mais rendues bien plus elliptiques. Comme notamment ce point : https://www.youtube.com/watch?v=0CkiDuHrxsM
Et ses conséquences directes, ci-dessous :
(extrait d'un échange par mail avec un ami anglo-saxon, lui aussi grand fan du film - pas le courage de traduire, désolé)
"So if Tyrell was actually meant to be a replicant, that would then give a slightly new meaning to the whole story (or at least a more coherent one, and definitely even more K. Dickian). Indeed, as a result, the scam is that everything on Earth - not only animals but also the supposedly human beings - is probably artificial (and has likely been for quite some time). One can then infer that, in order for artificial humanity not to have to cope with the revelation and risk going nuts when faced with such terrifying vistas of reality (cf. what happens to Rachel), some replicants were therefore intentionally made to look more artificial than others. Hence the Nexus series, with shorter lifespans, specialized functions, no memory implant and an acute awareness of their artificial nature. They are meant to draw the line - a mere decoy for artificial humanity to not even try to question what is artificial or not. Just like in marketing, a cheap and botched version of a product is sometimes released only to upsell the standard version and make it look more attractive.
On top of the unbearable revelation that being of artificial origins would bring, it would come forth with a question that artificial humanity may also better be spared (and which is exactly what the Nexus try to wrap their heads around throughout the entire movie): when all is artificial, is death really inevitable? if the other laws of nature have been bypassed by the "god of biomechanics", why would that one still hold true? could it be that death had just been been kept-in intentionally - and why? As a matter of fact, it is not that hard to come-up with many reasons why death would have been kept in the design. From the more earth-grounded ones: avoiding over-population; just because the replicants' minds are nothing but copies of the human's mind - in which death is a key concept - and therefore need it to function properly etc. To the more philosophical ones: limited time forces individuals to make choices (= you can't do everything / may not have a chance to do something later) and therefore has us weigh and value more carefully - and ultimately appreciate - life and the experiences we go through (something which Roy seems to finally understand and accept through his final speech). However, just because there are many perfectly sound reasons for not trying to achieve immortality does not mean that artificial humanity would accept it and not be tempted to pursue it if it knew it could. After all, it is one of the oldest dream of humanity itself. So here goes another reason why the artificial nature of Blade Runner's humanity is better kept away from its people. It's a kind of knowledge that has more downsides than advantages. The forbidden fruit you should not try to bite into, even if the (artificial) snake tells you otherwise."