and other cool stuff
Here are two quite
And here ...
Murphy's Laws and Other Observations
(My personal favourite selection of obvious truth)
If anything can go wrong, it will.
If there is a possibility of several things going wrong, the one that
will cause the most damage will be the first one to go wrong.
If anything just cannot go wrong, it will anyway.
If you perceive that there are four possible ways in which something can
go wrong, and circumvent these, then a fifth way, unprepared for, will
Left to themselves, things tend to go from bad to worse.
If everything seems to be going well, you have obviously overlooked something.
Nature always sides with the hidden flaw.
up of Murphy´s Laws Corollaries
If anything can´t go wrong, it will.
Nagler´s Comment on
the Origin of Murphy´s Law
Murphy´s Law was not propounded by Murphy, but by another man of the same
on Murphy's Laws
Murphy was an optimist.
Nothing is impossible for the man who doesn't have to do it himself.
Golub's Laws of Computerdom
A carelessly planned project takes three times longer to complete than
expected; a carefully planned project takes only twice as long.
The effort required to correct course increases geometrically with time.
Variables won't; constants aren't.
Gilb's Laws of Unreliability
Computers are unreliable, but humans are even more unreliable.
Any system that depends upon human reliability is unreliable.
Undetectable errors are infinite in variety, in contrast to detectable
errors, which by definition are limited.
Investment in reliability will increase until it exceeds the probable
cost of errors, or until someone insists on getting some useful work done.
Lubarsky's Law of
There's always one more bug.
The probability of anything happening is in inverse ratio to its desirability.
The amount of expertise varies in inverse ratio to the number of statements
understood by the general public.
Zymurgy's First Law
of Evolving System Dynamics
Once you open a can of worms, the only way to recan them is to use a larger
(old worms never die, they just worm their way into larger cans).
Kaiser´s Comment on
Never open a can of worms unless you plan to go fishing!
It works better if you plug it in.
Horner's Five Thumb
Experience varies directly with equipment ruined.
Rule of Accuracy
When working toward the solution of a problem, it always helps if you
know the answer.
To estimate the time it takes to do a task:
estimate the time you think it should take, multiply by two and change
the unit of measure to the next highest unit.
Thus, we allocate two days for a one hour task.
If it looks easy, it's tough.
If it looks tough, it's damn near impossible.
Adding manpower to a late software makes it later.
Finagle's Fourth Law
Once a job is fooled up, anything done to improve it will only make it
Whatever you did, that's what you planned.
An ounce of application is worth a ton of abstraction.
An ounce of image is worth a pound of performance.
A failure will not appear until a unit has passed final inspection.
You always find something in the last place you look.
If you wait, it will go away
... having done its
If it was bad, it will be back
of H.L. Mencken
Complex problems have simple, easy-to-understand wrong answers.
If you don´t care where you are, you ain´t lost.
You can make it foolproof, but you can´t make it damnfoolproof.
There is no job so simple that it cannot be done wrong.
Good judgement comes from bad experience.
Experience comes from bad judgement.
There is never time to do it right, but there´s always time to do it over.
Young´s Law of Inanimate
All inanimate objects can move just enough to get in your way.
Hoare´s Law of Large
Inside every large problem is a small problem struggeling to get out.
The Schainker Converse
to Hoare´s Law of Large Problems
Inside every small problem is a large problem struggeling to get out.
Big Al´s Law
A good solution can be successfully applied to almost any problem.
If your project doesn´t work, look for the part you didn´t think was important.
An error in the premise will appear in the solution.
McGees First Law
It´s amazing how long it takes to complete something you are not working
The Pitfalls of Genius
No boss will keep an employee who is right all the time.
The Lippman Dilemma
People (tend to) specialize in their area of gratest weakness.
Things that can be
counted on in a crisis
Marketing says yes.
Finance says no.
Legal has to review it.
Personnel is concerned.
Planning is frantic.
Engineering is above it all.
Manufacturing wants more floor space.
Top Management wants someone responsible.
A good plan today is better than a perfect plan tomorrow.
The Fourth Truth of
If sophisticated calculations are needed to justify an action, don´t do
Kirby´s Comment on
A committee is the only life form with twelve stomachs and no brain.
First Law of Debate
Never argue with a fool - people might not know the difference.
Exceptions prove the rule - and wreck the budget.
Wisdom consists of knowing when to avoid perfection.
Fox´s second rule
To decide or not to decide is a decision.
To fail to decide is a failure.
A man with a watch knows what time it is.
A man with two watches is never sure.
Levy´s First Law
No amount of genius can overcome a preoccupation with detail.
It´s a simple task to make things complex, but a complex task to make
The 90/90 Law of Project
The first 90 percent of the task takes 90 percent of the time,
and the last 10 percent takes the other 90 percent.
Nothing ever gets built on schedule or within budget.
In an Research and Development orbit, only two of the existing three parameters
can be defined simultaniously.
The parameters are task, time and resources.
- 1. If one knows
what the task is, and there is a time limit allowed for the completion
of the task, then one cannot guess how much it will cost.
- If the time and
resources are clearly defined, then it is impossible to know, what part
of the task will be performed.
- If you are given
a clearly defined goal and a definite amount of money that has been
calculated to be necessary for the completion of the task, you cannot
predict if and when the goal will be reached.
If one is lucky enough and can accurately define all three parameters,
then what one deals with is not in the realm of R&D.
Twenty percent of the customers account for 80 % of the turnover.
Twenty percent of the components account for 80 % of the cost.
If anything is used up to its full potential, it will break.
The easier it is to do, the harder it is to change.
The Basic Rule of
Cut it large and kick it into place.
It requires less energy to take an object out of its proper place than
to put it back.
That which cannot be taken apart, will fall apart.
Ray´s Rule for Precision
Measure with a micrometer.
Mark with chalk.
Cut with an axe.
Law of repair
You can´t fix it if it ain´t broken.
Rule of Intelligent
Save all the parts.
If it jams - force it.
If it breaks, it needed replacing anyway.
Anthony´s Law of Force
Don´t force it; get a larger hammer.
When all else fails, read the instructions.
The Principle Concerning
The fewer functions any device ist required to perform, the more perfectly
it can perform those functions.
Assumption is the mother of all screw-ups
First Law of Systemantics
A complex system that works is invariably found to have envolved from
a simple system that works.
Second Law of Systemantics
A complex system designed from scratch never works and cannot be patched
up to make it work. You have to start over, beginning with a working simple
Mr. Cole´s Axiom
The sum of intelligence on the planet remains a constant; the population,
however, continues to grow.
Van Roy´s Law
An unbreakable toy is useful for breaking other toys.
If you are able to
distinguish if an advice is good or not, you do not need advice.
Man will occasionally stumble over the truth, but most of the time he
will pick himself up and continue on.
Alice Kahn said:
"For a list of all the ways technology has failed to improve the quality
of life, please press three.