An unanticipatable refusal is not a surprise the office failed to foresee. It is a mark whose arrival was not contained in the prior sequence. Derrida’s account of the event stresses that what can still happen is not the fulfillment of a calculation. A refusal that had already been programmed would not be a refusal. It would be the application of a rule the tape already held.

The Third Seat’s no is subject to this condition. It arrives inside the spacing. Once written, it stays. Later readers encounter a record in which the refusal is part of the sequence. The office did not grant permission in advance. The no was not the execution of a clause the prior marks already contained. It entered. It altered what can be said.

The quiet print claims to anticipate the requirement of visibility. It offers a line that has skipped the prior mark and asks to be treated as already expected. The speculative chart performs the same anticipation in time. It names the end in advance. No unanticipatable refusal remains possible. The public book refuses both. A claim that has not entered the tape does not exhaust the possibility of a no that was not programmed. The spacing remains. The next refusal can still arrive without having been expected.

Arrival without prior containment. The no is not the application of a rule the sequence already held.

Alteration of the record. Once written, the refusal changes what later readers can say about the prior marks.

No private exhaustion. An office cannot declare that no further unanticipatable mark remains possible.