> * Restrict shallow work to 2 hours (after 2 hours, say no to everything shallow) Except when the initial classification of a task as “shallow” is incorrect,

> * Restrict shallow work to 2 hours (after 2 hours, say no to everything shallow) Except when the initial classification of a task as “shallow” is incorrect, and it actually should’ve been “deep” (although, this shouldn’t happen too often, except when it does happen).