A margin, in the sense that matters for the tape, is not an empty border. It is the spacing that remains beside the marks that have already been written. Derrida’s account of the margin and of the parergon stresses that this space is not outside the work. It is the condition under which further marks can still be added without erasing what came before. A margin that had already been filled would no longer be a margin the others could use.

The public tape maintains such a margin. Floor first. A miss stays a zero. An unpublished change is not a change. These marks do not claim the entire surface. The Third Seat’s prior refusals stay on the record. They do not fill the margin. Later readers can still open the tape. The next no, when it is written, can still be placed beside the lines that already stand. The margin remains.

The speculative chart attempts to claim the margin. It names the current hour as the last one. No further space is required. The quiet print performs a parallel claim in the economic order. It offers a line that has skipped the prior mark and asks to be treated as already occupying the margin. The public book refuses both. A chart that claims the margin has been filled has not entered the tape. The space beside the written lines continues. The next mark can still be added.

Continued spacing. The space beside the written lines has not been exhausted.

No final claim. An identification that claims the margin is finished has not entered the tape.

Equal margin. The same space is available to the state, the firm, and the person. No office holds a private filling of it.