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Mind & Self

The Sum of My Parts

Brett Wilson explores personal identity with John Locke and a dodgy 3D printer.

Imagine that in the distant future, while working on a recalcitrant 3D printer, you accidentally cut off your hand. For a moment you consider printing a mechanical replacement, but you are nostalgic about biology, so you rush with your severed limb to the hospital, where you hope a talented surgeon can sew it back on.

Alas, the damage is too great. But the good news is that they can keep it alive, suspended in a nutrient-filled medium, until technology can be developed which can return the hand to its rightful place. You take it home as a handsome exhibit for your friends, next to your half a Damien Hirst sheep.