Madeline Schwartzman is a New York-based writer, filmmaker and architect. This is an edited excerpt from her latest book, "See Yourself X: Human Futures Expanded," published by Black Dog Publishing.
(CNN)Do you feel your head as a sandwich -- as layers of bone, skin and hair? Probably not. The brain integrates ourselves into a functioning, unconscious whole. We feel the cladding only when something goes wrong, something as simple and universal as an infestation of lice. Then the contours of the head become very apparent and our goal -- eradication and oblivion -- becomes imperative.