Editing Replicant (section)

=== In-universe evidence ===
In ''Do Androids Dream of Electric Sheep?'', Deckard was subjected to the Voight-Kampff test and passed, marking as a human, though Rachael's near-passing the test casts doubt on its infallibility. He collects photographs, yet has no obvious family beyond a reference to his ex-wife (who called him a "cold fish"). The film's Supervising Editor Terry Rawlings remembers that Scott "purposefully put Harrison in the background of the shot, and slightly out of focus, so that you'd only notice his eyes were glowing if you were paying attention... Ridley himself may have definitely felt that Deckard is a replicant, but still, by the end of the picture, he intended to leave it up to the viewer."<ref name="Sammon (Revised Ed.)">{{cite book|last1=Sammon|first1=Paul M.|title=Future Noir: The Making of Blade Runner|date=2017|publisher=HarperCollins|location=New York|isbn=9780062699466|page=413|edition=Revised & Updated}}</ref>

The sequel, ''Blade Runner 2049'', revisited the question while leaving the answer deliberately ambiguous. The film reveals that Deckard was able to conceive a child with Rachael, and this was possible because she was an experimental prototype (designated Nexus-7), the first and only attempt to design a replicant model capable of procreation. Niander Wallace, CEO of the company that produced replicants, captures Deckard and muses that his falling in love with Rachael seemed too perfect, suggesting that Deckard was designed to fall in love with Rachael as part of Tyrell's experiment to develop replicants that can procreate, but with Tyrell dead and the records destroyed, he will never know.