The new movie by Rupert Sanders, based on the hugely popular anime Ghost in the Shell by Musamune Shirow opens with a haunting preface. It is set in 2029 and observes as the boundary between human and machine becomes more and more blurred. In the time it has become customary for people to choose to “enhance” themselves by replacing a limb or an internal organ with a synthetic one, therefore also one with many new high-tech features. In that context, one private company works on blurring that boundary even further by creating the first “synthetic full-body prosthesis augmented-cybernetic human” – Major Mira Killian. She has an entirely robotic body except for her human brain. Therefore the story argues that by keeping the brain the soul, or the ghost, remains unaltered independent from the body, or the shell.
Now the obvious question this setup poses is where the boundary between human and machine really stands – how far can one go on altering and enhancing before one turns to a cyborg? All that further leads to the discussion what is it that defines a human at all.