Build Your Week with Fewer, Bigger Time Blocks

Medium - Requires some preparation Recommended

Every time your inbox pings, you pause—pull your train of thought off the track. Eight meetings, fifteen texts, three coffee runs later, your day feels like a minefield of distractions. Your brain is juggling so many tasks that it’s accomplished nothing but a halfhearted sprint in the wrong direction.

Computer scientists call this thrashing: when the system spends so much time context-switching that it never really gets any work done. They prevent it by imposing a minimum time slice—say, a few milliseconds—before switching tasks. For you, the minimum slice might be 45 minutes.

You start by spotting your real context-switch rate: every time you checked messages or opened a new tab, you wrote it down. You saw thirty interruptions by midday and decided to try a different tactic: three 45-minute blocks of deep work, no pings allowed, followed by a 15-minute coalescing session to batch all your email, calls, errands, and chats.

On day two, you hit your word-count goals before lunch and felt less drained, more in control. By evening, you’d crossed off the toughest items and felt ready to relax. Learning to batch interruptions into coalescing slots and honoring a minimum focus period gave you back whole hours each day.

Identify how many times you switch tasks per hour, then set a firm minimum block—forty-five minutes, one hour—during which you ignore pings. Turn off notifications, close irrelevant apps, and hold all quick tasks for your scheduled coalescing periods. This simple structure will let you dive deep, shelter your attention, and rescue your day from constant context switches. Try blocking your calendar now for a single, uninterrupted work block.

What You'll Achieve

You’ll experience deeper focus, lower stress, and more consistent progress. Externally, you’ll complete critical tasks faster and regain control of your schedule.

Minimize Context Switch Costs

1

Track Your Interruptions

For two workdays, note each time you switch tasks (including checking email or messages). Tally the interruptions to see your true context-switching rate.

2

Set Your Minimum Work Block

Based on those findings, pick a time span (30–90 minutes) during which you’ll work on just one task without checking messages or opening new tabs.

3

Use Visual Cues

Display a timer or set your phone to Do Not Disturb during each block. Remove desktop notifications and put your phone face down to resist temptation.

4

Schedule 'Coalesce' Periods

Plan two or three slots each day for all your quick tasks—email, calls, messaging. Batch those interruptions to reduce scatter.

Reflection Questions

  • What’s your current average time between task switches?
  • How would blocking off larger work chunks improve your day?
  • What rituals can you use to signal the start of an uninterrupted focus period?

Personalization Tips

  • If you find 15 interruptions in a morning, try 45-minute focused blocks before the next break.
  • As a student, dedicate one Pomodoro of 25 minutes exclusively to reading, then spend the next 10 minutes on emails and texts.
  • In parenting, block two-hour slots for uninterrupted project work and handle household logistics only during scheduled breaks.
Algorithms to Live By: The Computer Science of Human Decisions
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Algorithms to Live By: The Computer Science of Human Decisions

Brian Christian and Tom Griffiths 2016
Insight 5 of 8

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