a good process-centric message immediately "closes the loop" with respect to the project at hand. When a project is initiated by an e-mail that you send or receive, it squats in your mental landscape-becoming something that's "on your plate" in the sense that it has been brought to your attention and eventually needs to be addressed. This method closes this open loop as soon as it forms.
( Cal Newport )
[ Deep Work: Rules for Focused ]
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