Personhood Blade Runner raises the question of whether a constructed being should count as a person. In the movie, replicants lack legal rights and are not regarded as human. Similar questions are raised in later unrelated works such as
Her and
Westworld. Some viewers speculate that the name "Deckard" may be a deliberate reference, by Philip K. Dick, to philosopher
René Descartes; in any case, one of the replicants in the film, arguing for her own personhood, uses Descartes' famous quote, "I think therefore I am". While there is no scientific universal test for consciousness in the real world, the replicants' organic nature may make it difficult to reject the notion of their personhood. Artificial intelligence researcher
Marcus Hutter asked in 2015, "How do I know that you (a fellow human) have feelings? I have no way of really knowing that. I just assume that because you are built up similarly to me and I know that I have emotions." Hutter argues that replicants are "built up similarly" to humans, and might therefore be more likely to be labeled as conscious than an inorganic intelligence would.
Eyes Eye symbolism appears repeatedly in
Blade Runner and provides insight into themes and characters therein. The film opens with an extreme closeup of an eye which fills the screen reflecting the industrial landscape seen below. In Roy's quest to "meet his maker" he seeks out Chew, a genetic designer of eyes, who created the eyes of the Nexus-6. When told this, Roy quips, "Chew, if only you could see what I've seen with your eyes", ironic in that Roy's eyes
are Chew's eyes since he created them, but it also emphasizes the importance of personal experience in the formation of self. Roy and Leon then intimidate Chew with disembodied eyes and he tells them about J. F. Sebastian. It is symbolic that the man who designed replicant eyes shows the replicants the way to Tyrell. Eyes are widely regarded as "windows to the
soul",
eye contact being a facet of body language that unconsciously demonstrates intent and emotion and this is used to great effect in
Blade Runner. The
Voight-Kampff test that determines if you are human measures the emotions, specifically
empathy through various biological responses such as fluctuation of the pupil and involuntary dilation of the iris. Tyrell's trifocal glasses are a reflection of his reliance on technology for his power and his myopic vision. Roy
eye gouges Tyrell with his thumbs while killing him, a deeply intimate and brutal death that indicates judgement of Tyrell's soul. File:Blade Runner Deckard Eye Glow.jpg|thumb|right|In certain scenes, the pupils of replicants' eyes glow, which is evidence that Deckard may be a replicant himself. According to Ridley Scott, "that kickback you saw from the replicants' retinas was a bit of a design flaw. I was also trying to say that the eye is really the most important organ in the human body. It's like a two-way mirror; the eye doesn't only see a lot, the eye gives away a lot. A glowing human retina seemed one way of stating that". in which real animals are rare and owls are very rare, since they were the first animals to start dying of the pollution which pushed humans Off-World. The red tint indicates that the owl is a replicant. == Religious and philosophical symbolism ==