On The Impact of Interruption on Creativity
April 12th, 2008
My mental model of creativity follows the one on research and exploration: given a (probably very multi-dimensional) solution space for a given problem, the act of creativity, research and exploration is to find a particular spot in that solution space (aka a solution) that minimizes/maximizes a particular metric on that solution space.
A geographical example would make this easier to understand.
Imagine to find yourself on a unknown geographical location as an explorer and your goal is to find the highest peak of the whole planet. You are given a GPS compass that tells you exactly where you are and the altitude of your current location but no map.
Now imagine that it’s foggy and your visibility is about 50 meters (~150 feet).
This is how creativity and research feel to me.
Here, it would be already interesting to discuss the various strategies that one could adopt to find such peak (hill climbing, brownian motion, levy flight, random waypoint) [see also Ben’s post on the subject].
But there’s another dimension in the exploration strategy that I haven’t taken into consideration until recently: the impact of interruption frequency.
Imagine yourself again in the geographical exploration scenario I described above, but now there’s a twist: Captain Kirk is using you on a multi-planet search and is a little ADD so he’s telling Scotty to play tricks on you and teleport you randomly, in the middle of your search, onto another planet.
Now, your goal is still to find the highest peak but now on each of the planets you are teleported on. And without the ability to take notes, and without knowing when you’ll be teleported or where ahead of time. The only active thing you can do is to report what you consider your best finding to Captain Kirk and have Scotty teleport you back on the planet where you were last teleported from to continue your search there.
Note how hard this search is: the planet is huge and you know you’re not going to find *the* highest peaks of all but others are searching too and you’ll be rewarded based on how higher your findings are compared to others’.
The act of being teleported models in the geographical search scenario the effect of interruption during a creative exploration.
The overall game gets even more challenging if the tasks change depending on the planet you’re teleported on: on one you have to find the highest peak, on another the lowest canyon, on another find water, on another find a particular flower and so on.
The overall effect I’ve noticed on myself as the rate of interruption gets more frequent and the tasks to solve more diverse, is that my overall ability to accomplish things increases but my performance on the single problem solving degrades dramatically. Also my frustration level after each interruption grows very quickly (further impacting my ability to perform an optimal search strategy)
And the overall emotional effect is overwhelmingly disappointing as one tends to measure not the sum of all successes (which is probably higher), but the variation on the single one relative to the optimum that I have experienced in the past on a single task solution.
The best way to model this in the multi-planet geographical exploration problem is to add fog to each planet’s athmosphere with a thickness what is proportional to the frequency of teleport jumps; the more you get teleported, the less you’re able to see around you, the worse your performance in estimating whether or not you have reached an optimal point becomes.
In reality, what I think it’s happening is that the interruption-induced context switching drains a lot of the resources and effects dramatically the ability to perform research strategies that are more complicated that a simple hill climbing. This forced context switch is also dramatically stressful as lots of brain activity needs to be channeled into making sure that the context switch happens at the speed that the person interrupting you wants you to act.
It is critical to understand that the interruptor does *not* need to switch contexts, only the interruptee.
I suspect that it is not all that true that people tend to get less inventive and creative as they get older (as it’s generally thought to be true). What happens is that their previous successes cause their interactivity levels to grow and, as a natural consequence, their interruption rate to increase and their search/creativity strategies to degrade.
What is very interesting to note is how much our society and even human resource management tend to completely ignore the impact of interruption frequency in the environmental effects of people’s well being and productivity levels, especially in creative jobs.
This why I think that working from home has tremendously beneficial performance impact on my work: even when I lived in Cambridge and MIT’s campus as a 10min bike ride away, I would stay home to work, without phone, IM, IRC or email to read papers and draw on whiteboards.
Similar is how many people report getting more work done on airplanes rides in 8 hours than in two months at the office. We’ll see how this effect gets erased as WiFi gets more and more available on planes.
Considering ‘attention’, ‘focus’, ‘creative flow’ as valuable resources that one has to protect, maintain and fight for is a new trend that is slowly emerging and that I’ve always understood being very important.
Unfortunately, sometimes life’s events overthrow that equilibrium and as interruption frequency increases, creativity performance drops, resulting in a sense of failure and emotional debilitation.
It’s only partially comforting to know that this is just a fact of life and that it’s not a personal deficency.
But it’s a constant struggle to find better ways to work and interact with others without increasing the ‘fog levels’ around you too much (and to balance your needs for focus with other’s needs to interrupt you).