Defining deep work
Coined by computer science professor Cal Newport, deep work refers to professional activities performed in a state of distraction-free concentration that push your cognitive capabilities to their limit. These efforts create new value, improve your skill level, and are difficult to replicate.
In contrast, shallow work consists of non-cognitively demanding, logistical-style tasks, often performed while distracted. Examples include responding to emails, organizing files, and attending routine meetings. While necessary, shallow work does not produce high-value output.
The concept of attention residue
Many workers believe they can multitask by quickly checking their inbox or messaging apps while working on a complex project. Research shows this habit is highly damaging to productivity.
When you switch from Task A to Task B, your attention does not follow immediately. A portion of your cognitive capacity remains focused on the previous task. This attention residue decreases your performance on the new task, leading to mistakes and slower processing speeds.
Deep work vs shallow work comparison
| Attribute | Deep Work | Shallow Work |
|---|---|---|
| Cognitive demand | High (demands full concentration) | Low (can be done while distracted) |
| Value created | High (difficult to replicate, high leverage) | Low (easily replicable, coordination-focused) |
| Time limits | Sustained blocks (90 to 120 minutes) | Short bursts (throughout the day) |
| Examples | Writing code, analyzing data, drafting proposals | Answering emails, scheduling, checking alerts |
When to schedule deep work
The human brain can only sustain deep focus for a maximum of three to four hours per day. Therefore, you must schedule your deep work sessions during your peak energy hours.
Protect these sessions by using an app blocker to restrict communication tools and browsers. Keep the blocking strict to prevent shallow work tasks from interrupting your focus.
See how to implement these boundaries with our guide on utilizing a stop procrastinating app to secure your schedule.
FAQ
Can I do deep work for an entire 8-hour workday?
No. Cognitive psychology indicates that even highly trained individuals cannot maintain intense, distraction-free concentration for more than 4 hours a day. The rest of the workday should be used for shallow tasks and recovery.
How do I communicate deep work boundaries to my team?
Set your status to away or busy on your team chat, and block out the time on your shared calendar. Let colleagues know that you check messages at specific, scheduled intervals rather than keeping chat open constantly.
How does StrictBlock assist with deep work?
StrictBlock allows you to lock distracting applications and websites during your scheduled deep work blocks, removing the cognitive strain of constantly resisting distractions.