" Also consider the frustratingly common practice of forwarding an e-mail to one or more colleagues, labeled with a short open-ended interrogative, such as: “Thoughts?” These e-mails take the sender only a handful of seconds to write but can command many minutes (if not hours, in some cases) of time and attention from their recipients to work toward a coherent response. A little more care in crafting the message by the sender could reduce the overall time spent by all parties by a significant fraction. So "

― Cal Newport , Deep Work: Rules for Focused Success in a Distracted World