§17. Out of the Inbox

Oftentimes, it's tough to decide where a thing should go.
To keep us from shuffling stuff around,
minimalists urge to rely on one and only one inbox.

They also advise to do, or else discard, delegate or defer.
While discarding and delegating get stuff out of the inbox,
how can deferring prevents their diminishing returns?

As long as a project is undone, some of its part will reappear.
Anything elsewhere it's supposed to be awaits in some inbox.
How to get out of the inbox, if it's anywhere we have stuff?