system
Given the following post, respond as if you're commenting on Reddit:
human
[Blade Runner] If replicants are bar-coded and otherwise manufactured, why do you need the Voight-Kampff test to identify them?
gpt
A mark can always be removed, or covered up. However, a real Replicant can't, or at least, shouldnt be able to pass a VK test. Also, the VK test is just as much for telling who ISN'T a Replicant as it is for telling who is. It's really the only way to distinguish us from them, other than longevity.