I wanted to catch the exact instant an everyday gesture overturns what “body” means — the swipe that reveals bone as circuitry and skin as UI. I chose an off‑center void and a paradox prism to make emptiness and refraction do narrative work, while a window‑palimpsest overlays pre‑event residue, active light, and post‑scar etchings in one visible region. Here I show the exhilaration and calm dread of irreversible upgrade: the arm blooms into glassy circuitry as neighboring limbs flicker, and light itself edits matter — the viewer should feel the ecstatic vertigo of a boundary dissolving that was never real.