Posted by: bradpierce | 2009/03/06

Amount of time spent on a project isn’t what counts — it’s the amount of uninterrupted time

According to Edwin Bliss

Amount of time spent on a project is not what counts: it’s the amount of uninterrupted time.

and

One of the most prolific of modern novelists was […] Georges Simeon. [His] method was to cut himself off completely from the outside world while working on a book: no phone calls, no visitors, no newspaper, no mail; living, as he said, ‘like a monk’. After about eleven days of total immersion in his writing he would emerge with another best-selling novel.

Few of us would carry concentration to that extreme – but what if we did, who knows what we might accomplish.

Stephen B. Jenkins wrote an excellent article on the huge cost of interruptions to the productivity of computer programmers and practical advice on how to reduce that cost.

For the historical context, a good source is Christine Rosen’s “The Myth of Multitasking“.

Making the best of a bad interruption

On longer time scales, when you must drop something for a while, it’s important, before doing so, to leave behind enough context for yourself to swap it back in. Write down some organized notes about where you were, what still needed to be done, etc. Keeping a log can be a big help, too, but it’s not a substitute for a high-level summary before suspending the task.

(For programming in particular, when you consider that you will need to revisit most computer code someday in the future, this is also a selfish reason to build a legacy of great comments and documentation.)

A good mental model for suspending a task is to leave behind the sort of information that you would need to hand it off to another person to finish.

Pretend that you are handing off the task to another person and you will be going away on a long vacation and unavailable to answer further questions, because when you come back to the task you will effectively be that other person.

Swapping in a new context is very expensive. Saving your state well when you suspend is actually much, much cheaper overall, assuming that you’ll need to come back to the task eventually.

This is one reason it’s important to write your to-do list at the end of the working day, instead of waiting until the start of the next working day.

Using concentration to overcome procrastination

For overcoming procrastination, here’s a tactic that really works. I call it a “work-or-nothing session”. (Footnote: on 18/Nov/2009 an article in the Wall St. Journal informed me that essentially the same tactic is being recommended as the ‘Pomodoro Technique’. Too bad I didn’t patent it back in the ’90s. :-) Really, it’s just more evidence that it works.)

  1. Get very clear on the specific task that you want to make progress on, for example, update a  resume, write a proposal, clean out the garage, etc..  Write it down in a steno book, next to the  current date and time.
  2. Turn off the TV, radio, stereo, iPod, etc., and silence your phone and pager.  If your task  requires a computer, turn off e-mail and IM.
  3. Set an egg timer for 30 minutes.
  4. Until the timer goes off, either do the specific task or nothing at all.  No talking, eating,  drinking, web surfing, daydreaming, writing notes about other ideas, doing other tasks, going to the  toilet, looking at the timer, etc.  If it’s a sit-down task, and you’re not doing it, then just sit  there stupidly until you get started again.  If it’s a stand-up task, and you’re not doing it, then just stand there stupidly until you get started again.
  5. When the timer goes off, end the session.  Don’t push a session past the 30 minutes you committed to. A deal’s a deal, including with yourself. But if the spirit moves you, then commit to another formal 30-minute session and dive back in. Just don’t neglect to write it down and reset the timer first.

Why does this work? Concentration is a big part of it, of course, but I have a theory — instead of further reinforcing avoidance with pleasurable diversions, you’re  turning work itself into a relatively pleasurable diversion from avoidance, because it’s surprisingly unpleasurable to sit there stupidly or stand there stupidly.  Whatever the reason, it does work.

What’s the catch?  Although almost anybody can muster the will power to last through a 30 minute commitment until the egg timer issues its reprieve, actually making the commitment to a work-or-nothing session in the first place is not so easy.

Here’s a simple technique that works for me.  Store a handful of red stir sticks in your desk.  Each morning, take a few of them out, one for each work-or-nothing session you’re committing to for that day, and set them on one side of your monitor.  When you start a work-or-nothing session, move a stir stick right in front of you, such as on your keyboard. If you successfully complete the work-or-nothing session, move the stir stick to the other side of the monitor.  But, if you quit part way through, throw the stir stick back on to the to-do pile. It feels so good to move those stir sticks to the other side – and it keeps you honest.  If it’s lunch time and you’ve only moved 2 stir sticks to the other side so far, where did your morning go?

Red stir sticks

Set a goal for the number of sessions per day or week.  Start small, say one per day, and steadily build up your stamina until it becomes a treasured golden habit.

More blog entries on Effectiveness.


Responses

  1. According to Walter Kirn

    Multitasking messes with the brain in several ways. At the most basic level, the mental balancing acts that it requires—the constant switching and pivoting—energize regions of the brain that specialize in visual processing and physical coordination and simultaneously appear to shortchange some of the higher areas related to memory and learning. We concentrate on the act of concentration at the expense of whatever it is that we’re supposed to be concentrating on.

    What does this mean in practice? Consider a recent experiment at UCLA, where researchers asked a group of 20-somethings to sort index cards in two trials, once in silence and once while simultaneously listening for specific tones in a series of randomly presented sounds. The subjects’ brains coped with the additional task by shifting responsibility from the hippocampus—which stores and recalls information—to the striatum, which takes care of rote, repetitive activities. Thanks to this switch, the subjects managed to sort the cards just as well with the musical distraction—but they had a much harder time remembering what, exactly, they’d been sorting once the experiment was over.

    Even worse, certain studies find that multitasking boosts the level of stress-related hormones such as cortisol and adrenaline and wears down our systems through biochemical friction, prematurely aging us. In the short term, the confusion, fatigue, and chaos merely hamper our ability to focus and analyze, but in the long term, they may cause it to atrophy.

  2. According to Todd T. Squirrel

    S-s-screw you! I only listen to double music!

  3. According to Paul Graham

    One reason programmers dislike meetings so much is that they’re on a different type of schedule from other people. Meetings cost them more.

  4. It’s hard to get back into the weekday groove on Monday morning. Your mind is still spinning on equally exciting weekend projects.

    So a good test of your personal organization system is how fast you can swap back in the brain process you suspended at the end of Friday.

    One tactic: write your to-do list at the end of the day, not at the beginning.


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