A memory is a brick formed from experience.

The brick is not a random sample of the day, and it is not a chronological tile in an archive. It forms when experience has a reason to persist: it mattered to a toward, it carried a feeling, it broke an expectation, or it was replayed. Over time bricks do not stack into a complete record. They compact into layers. Later moments are remembered through those layers as much as stored beside them.

Recall, even in unusual cases of near-complete autobiographical memory, is closer to reconstruction than to playback of tape. The gift of remembering almost every day is not obviously a better serving layer. People who have it often describe weather that will not pass.

The design question is not whether a brick can be nearly complete. It is what we are willing to leave unbricked, and what we think happens when too little is allowed to stay that way.

A philosophical exploration in memory systems, part 11. Terms · Previous: Experience · Next: Lessons