The Weaver's Infinite Scroll
A master weaver sits at a massive loom, but the machine has a frustrating flaw. The frame is fixed, holding only a small square of fabric at a time. When he finishes a section and rolls the scroll forward, the intricate pattern he just wove disappears from view.
This creates a visible glitch in the art. Because he cannot see the threads from the previous section, he has to guess where the lines should continue. The result is a series of disjointed breaks where the pattern does not quite line up.
To fix this, the weaver tries a new trick. Instead of rolling the finished section completely out of sight, he leaves the bottom fringe of the old threads attached to the top of the new frame. This lets him physically tie the new work into the old.
But a new problem pops up. The weaver usually counts threads from the top of the frame, like "stitch at row five." Now that two sections overlap, the numbering gets confused. The old threads and new threads fight for the same slot, making the instructions impossible to follow.
So he stops counting from the fixed frame edge entirely. Instead, he measures distance relative to his own hand, like "stitch three rows back from here." By switching to this moving perspective, the instructions work perfectly anywhere on the cloth.
With these changes, the weaver unrolls the final product. The tapestry is miles long and completely smooth. The complex vines flow uninterrupted from start to finish, and the work is finished much faster since he never has to stop and recalculate at the breaks.