The verification code arrived like a soft nudge from the past. He entered it with a finger that trembled not from fear but from expectation. The desktop interface bloomed—his profile picture, older now, a scar on the eyebrow from a rock-climbing mistake; his timeline, a layered palimpsest of identity. Posts about jobs he no longer had; long, earnest statuses about travel plans that never materialized; a flurry of birthday wishes that made his chest stutter.