I thought I understood the 80/20 rule pretty well when I first read about it in a management book I was reading.  The author suggested that 20% of a company’s customers took up 80% of the company’s time.  If you got rid of those demanding customers your time would be spent more effectively.

Since then, I have heard or seen several other definitions of the 80/20 rule.  LinkedIn, for example, phrased it this way:

Did you know that only 20 percent of what you do each day produces 80 percent of your results? Eliminate the things that don’t matter during your workday: they have a minimal effect on your overall productivity. For example, on a project, systematically remove tasks until you end up with the 20 percent that gets the 80 percent of results.

This is kind of a reverse way of getting to a similar place.  The basic idea is that one shouldn’t waste one’s precious time on things that don’t have a proportionate yield.  My own thinking about this is that in a life and death endeavor such as flying, it’s the little things that can kill you, so neglecting them may not be such a good idea.

While nearly all accidents occur as the result of a series of mistakes or bad decisions, some of them occur because of neglecting a single detail.

A flight instructor once told me that 80% or more of accidents could be traced to a poor pre-flight inspection.   I’m not sure if that’s entirely accurate, but because it only takes one accident to ruin your day and perhaps all future ones, it is clear that one should never cut corners on a pre-flight.

I just read an accident report where a newly minted pilot killed himself and his parents because he simply neglected to retract his flaps on takeoff in an unfamiliar airplane.   When his airplane refused to climb, he turned back and spun into the ground.

In the business world, it is often the small things that differentiate between those who get where they are intending to go and those who don’t.  Cold calls, as an example, are tedious and ridiculously time consuming, but they are a necessary part of nearly every sales job.

Investing in the least likely scenario, that is, spending time on the 20 percent, is important when the stakes are large.  In poker, the odds may be 11 to 1 that your flush is going to come up, but you will stay in the hand if the pot is big enough.

For me, investing in the least likely scenario has paid off often enough that I really can’t imagine getting anywhere if I didn’t.  Given the odds, I certainly wouldn’t have had the nerve to start a conversation with that pretty girl in Innsbruck who eventually became my wife.

So perhaps the 80/20 rule is just like all the other rules of The Game; they work most of the time, but are made to be broken.