Murphy's Technology Laws


  • You can never tell which way the train went by looking at the track.

  • Logic is a systematic method of coming to the wrong conclusion with confidence.

  • Whenever a system becomes completely defined, some damn fool discovers something which either abolishes the system or expands it beyond recognition.

  • Technology is dominated by those who manage what they do not understand.

  • If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization.

  • The opulence of the front office decor varies inversely with the fundamental solvency of the firm.

  • The attention span of a computer is only as long as it electrical cord.

  • An expert is one who knows more and more about less and less until he knows absolutely everything about nothing.

  • Tell a man there are 300 billion stars in the universe and he'll believe you. Tell him a bench has wet paint on it and he'll have to touch to be sure.

  • All great discoveries are made by mistake.

  • Always draw your curves, then plot your reading.

  • Nothing ever gets built on schedule or within budget.

  • All's well that ends.

  • A meeting is an event at which the minutes are kept and the hours are lost.

  • The first myth of management is that it exists.

  • A failure will not appear till a unit has passed final inspection.

  • New systems generate new problems.

  • To err is human, but to really foul things up requires a computer.

  • We don't know one millionth of one percent about anything.

  • Any given program, when running, is obsolete.

  • Any sufficiently advanced technology is indistinguishable from magic.

  • A computer makes as many mistakes in two seconds as 20 men working 20 years make.

  • Nothing motivates a man more than to see his boss putting in an honest day's work.

  • Some people manage by the book, even though they don't know who wrote the book or even what book.

  • The primary function of the design engineer is to make things difficult for the fabricator and impossible for the serviceman.

  • To spot the expert, pick the one who predicts the job will take the longest and cost the most.

  • After all is said and done, a hell of a lot more is said than done.

  • Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable and three parts which are still under development.

  • A complex system that works is invariably found to have evolved from a simple system that works.

  • If mathematically you end up with the incorrect answer, try multiplying by the page number.

  • Computers are unreliable, but humans are even more unreliable. Any system which depends on human reliability is unreliable.

  • Give all orders verbally. Never write anything down that might go into a "Pearl Harbor File."

  • Under the most rigorously controlled conditions of pressure, temperature, volume, humidity, and other variables the organism will do as it damn well pleases.

  • If you can't understand it, it is intuitively obvious.

  • The more cordial the buyer's secretary, the greater the odds that the competition already has the order.

  • In designing any type of construction, no overall dimension can be totalled correctly after 4:30 p.m. on Friday. The correct total will become self-evident at 8:15 a.m. on Monday.

  • Fill what's empty. Empty what's full. And scratch where it itches.

  • All things are possible except skiing through a revolving door.

  • The only perfect science is hind-sight.

  • Work smarder and not harder and be careful of yor speling.

  • If it's not in the computer, it doesn't exist.

  • If an experiment works, something has gone wrong.

  • When all else fails, read the instructions.

  • If there is a possibility of several things going wrong the one that will cause the most damage will be the one to go wrong.

  • Everything that goes up must come down.

  • Any instrument when dropped will roll into the least accessible corner.

  • Any simple theory will be worded in the most complicated way.

  • Build a system that even a fool can use and only a fool will want to use it.

  • The degree of technical competence is inversely proportional to the level of management.