Path B: The Vision Test. You're in the optometrist's chair. A phoropter flips diagnostic pairs: beige 1999 CRT or matte-black ThinkPad, Post-it password or biometric lock. A casual, slightly distracted doctor asks "this one, or this one?" until the final lens clicks into focus on Vision21. Macro editorial photography, desaturated with a rust accent, ASMR mechanical sound design, no music. The tension lives in close listening.