Context Switching: What It Costs and How to Cut It
Context switching: Moving between tasks that require different mental context, paying the cost of unloading one and reloading another.
Where the idea comes from
The phrase is borrowed from operating systems, where a context switch means saving one process’s state and restoring another’s. The analogy is apt in one respect and misleading in another: a computer restores state exactly and instantly, and a person does not.
How it shows up
- A day of many things and no finished thing
- Reconstructing where you were, several times, on the same task
- Slack, email and the task all open, none of them progressing
- Fatigue that does not match the amount produced
Practical steps to try
- Group similar work: all the email at once, all the reviews at once, all the calls at once
- Give each context a home in the day rather than a slot in your attention
- Close what you are not using — an open tab is an open invitation to switch
- Treat one unbroken block as the goal, not a series of shorter ones adding to the same total
Where the popular version overreaches
Some switching is the job, particularly in support, management and operations. The aim is not zero switching, which is unavailable to most people — it is one protected block, defended properly, rather than an evenly shredded day.
Common questions
- Is multitasking the same as context switching?
- Broadly yes, once you accept that people do not truly do two demanding things at once — what looks like multitasking is fast switching, and it carries the switching cost each time.
- How much does context switching actually cost?
- Enough to matter and less precisely than the popular percentages suggest. The honest version is that switching between demanding, unrelated tasks measurably degrades both, and that the effect grows when the previous task was left unresolved.
Sources
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