Parallax Drag Rail

An endless horizontal rail you can wheel or drag. Six copies of the set are laid end to end and the track silently jumps back a full sequence whenever it drifts past the safe band, so the loop never runs out and never visibly seams. Each image is held at 2.25 zoom and slid against its own frame by its distance from center, so cards read as windows onto one continuous scene. Captions only appear once the rail is genuinely still, and a real drag suppresses the click.