Main idea

A flash card that is no longer a pillar goes in the bin. No archiving, no "superseded" mention, no trace of what has stopped mattering: the active deck is maintained by withdrawal.

This isn't a failure. A card may have been right for a period, may have accompanied a transition or a discovery, may have been carried by a brilliant formulation more than by a durable truth. A personal pillar can be provisional without having been weak.

The rule stands head-on against the one governing a note base, where nothing is deleted: a superseded note stays in place and points to the one taking over, because it explains why you thought that at the time. Both rules are right in their own order. The base keeps the trace, that is its function; the deck carries what matters now, and keeping the old there would destroy precisely what it is meant to tell you.

Layer added on 2026-09-20. The reason for withdrawal isn't always an error discovered: it is often the world that has shifted beneath the card. A card on the product trio — product manager, developer and designer as the core decision-making team — stops carrying when an AI-assisted developer takes on the scale of a team and moves closer to the business. The wording stays right within its frame; the frame no longer describes the way of working of the person keeping the card.

Why it matters

It lifts the inhibition that freezes these setups: you hesitate to remove because removing seems to disavow. Naming withdrawal as a normal operation is what makes upkeep possible.

And it avoids a methodological misreading: importing the base's archiving doctrine into the deck, on the grounds that it is rigorous elsewhere.

Nuances and limits

Withdrawal is irreversible, and a card goes out on an impression of the moment as much as on a fact. You sometimes lose a formulation you won't find again.

There is a recourse, though: what deserved to be kept can be kept in the note base, which throws nothing away. What disappears is the status, not necessarily the trace.

Open questions

• Should a withdrawn card leave a note in the base, or does withdrawal lose its clarity as soon as it produces an artifact?