On memory that folds

An agent that holds context for hours has a problem most software never faces: it has to remember without remembering everything. Keep every detail and it slows under its own weight; forget too freely and it loses the thread of what it was doing.

Numa folds. As a task runs, older stretches of what it has seen get compressed into a few honest sentences — what happened, what it learned, what still matters — and the raw detail is set down. The fold is marked, so Numa knows a summary stands in for something longer, and can unfold it if the task turns back on itself. It is closer to how a person holds a long afternoon of work than to a transcript.

We think this is part of presence: not a perfect record, but a memory that keeps its shape.