4K. A contradiction—an acute, modern needle stitched into the hem of timeworn cloth. The digits gleamed with the promise of detail; the ability to see a single stray hair on a child’s temple, the cracks in a ceramic mug that had once held too-strong coffee. 4K suggested resurrection by resolution: take the flaking negatives, the scratched videotape, and coax from them an uncompromising clarity. It was less about nostalgia than fidelity—rendering memory with a surgeon's steadiness, refusing the comfort of fuzz.