I will call to your mind a scene from Blade Runner, where before the replicant dies (Roy Batty), he slams his hand on a nail (and many of you may not know this), but when Batty does that in the film, it’s a reference to an action that Sartre has a character perform in “Roads to Freedom”. In “Roads to Freedom”, the Sartre character slams his hand onto a nail to prove that he is free. Because he chose to do it. It hurt like hell, but he chose it. I put my hand on that nail, and that shows I am free, because just as a calculus of deterministic pleasure I would never have done it. It’s a philosophical demonstration… a painful and stupid one in my opinion… but by the time we get to Blade Runner, the replicant slams his hand onto a nail just to feel anything. Just to feel anything.
[Interesting observation by the late Rick Roderick]