"Crunch Mode" and Sleep
Why Crunch Mode Doesn't Work: 6 Lessons is an article that I meant to link to ages ago, and is presented here for the sake of completeness.
"Crunch mode" -- working extra hours each day for extended periods in
order to meet a (usually arbitrary and unrealistic) deadline -- is a
term that's familiar to programmers, especially any who've worked at a
small firm or start-up over the past 10 years. Unfortunately, with the
rise of concepts like "Internet Time" and the apparent need for
companies to do more with fewer resources, crunch mode is becoming such
an accepted way of life -- in fact, one company
even boasts about its "crunch mode accomodations" [my thanks
to Jason
Della Rocca's entry in Reality Panic for
that link].
The belief that crunch mode works may stem from the fact that our work
doesn't look like work. Programming is most often done in a seated
position, and being a labour of the mind, a programmer may be wrestling
with concepts that drive the engines of commerce or an airliner, but
appear to others only to be staring into space. Like our work, the
end-product is also invisible. As David Allen astutely points out in
Getting
Things Done
Inhe old days, work was self-evident. Fields were to be plowed, machines
tooled, boxes packed, cows milked, widgets cranked. You knew what work
had to be done -- you could see it. It was clear when work was
finished, or not finished. [from page 5 of Getting Things Done]
Visible or not, it's still labour, and labour is tiring. Sooner or
later, the Law of Dimishing Returns comes into effect. The graph below
is taken from Why Crunch Mode
Doesn't Work and shows worker productivity over
time:

This graph is an approximation of a one that is almost 100 years old --
one taken from Sidney J. Chapman's Hours of Labour (1909), excerpts of
which can be found here. The x-axis denotes increasing work hours in a day, while the y-axis shows increasing value. The curve P
represents worker productivity, for which we'll accept a simple
definition: "output per unit time at a given number of hours worked per
day". The graph shows that for a certain amount of time, a person can
actually get real, useful work done, and that work is represented by the blue area under the P
curve. After a certain point, the worker can still get work done, but
not as much or at the same pace as before -- this is represented by the
yellow area. The red area represents negative work, in which the
worker's output is of the "one step forward, two steps back" sort, and
happens after more than a reasonable number of hours of
work.
You've probably experienced this either at work or in school -- after a
certain number of hours of work, you become more mistake prone, and
spend an increasing amount of time correcting mistakes. Sometimes, you
don't catch those mistakes until the next day and spend time correcting
them, making for less productive time doing today's work. I know that
I've looked at code or documents I've written during crunch mode and
thought to myself: "Which idiot wrote this? Oh wait, that idiot was
me."
Another unseen consequence of working long hours is that non-work tasks
creep in to compensate. Errands you would have run from home are now
run from work, thus negating the reason for the late hours at the
office.
Finally, there's the matter of sleep. We programmers have an anti-sleep
culture; just count the Starbucks mugs or bottles of Coke, Mountain Dew
or Red Bull in any office with coders. Better still, visit ThinkGeek, an online
shop catering to programmers, systems adminsitrators and other computer types and note that they have a whole section
devoted just to caffeine.
We've known for a long time about the detrimental effects of lack of
sleep. Even in popular culture, the lack of sleep leading to odd or
insane behaviour goes back hundreds of years -- at least as far back as
Lady Macbeth. Those of us who've caught some documentary footage of
sleep deprivation experiments have had a good laugh at the test
subjects as their behaviour became increasingly erratic as the
experiment wore on. Sleep can often bring about clear thinking --
there's a reason we have the expression "Let me sleep on it". There's
also been some research suggesting that sleep inspires
creativity.
In spite of this knowledge, we still work hard at fighting sleep. In
writing this article, it dawned on me that we view sleep in a way
similar to the way anorexics view food -- not as
a necessity of lifenand one of its great pleasures, but as a necessary
evil, if not an enemy to be defeated. Consider this
slightly-edited-for-anonymity post from an anorexic's blog:
I'm bummed out right now. I'm doingYour first reaction was probably one along the lines of "Hey, that poor kid needs help!"really "well" and losing lots of weight. I'm getting lots of
compliments on my looks; everyone's going on like "[name deleted], what's your secret? I need to
start doing what you do!"
If only they knew. I have no idea what to do
anymore. It doesn't matter what I do; I won't be happy. Sometimes, I
think about what I'm doing to myself and realize that it's sick. I'm really just hurting
myself. I just want to stop and get better, but if i
do that, I'll gain back all my weight and be ugly again. Anorexia -- maybe it's a disease, but it's one that makes me
beautiful. I'm not ready to give it up.
The problem is: I'm miserable. My entire life is about being skinny. What the hell kind of life is
that? I want to be thin and beautiful. I'm certainly much thinner
and and more beautiful than before, but am I happy?
Thats it for now. I hate sounding so negative, but on the bright side, hey, I'm still losing weight.
Now imagine substituting anything related to food and eating with sleep and exchanging
anything related to thin and pretty with productive, a valued employee and
worthy of a raise
or candidate for
promotion.
Pardon the pun, but it's food for thought.
Interesting In a rare case of role rever...
Generic meeting summary.
I think this goes for most meetings:
"[...] a [...] faculty meeting is not over when everything has been said, it is only over when everything has been said by everyone. By my count, we're about 2/3 done with the first criteria but only about 1/4 done with the latter."
From ProfessorBainbridge.com via Infectious Greed.