Interesting laws, paradoxes and quotes

List of various laws

https://en.wikipedia.org/wiki/List_of_eponymous_laws

Goodhart’s law

When a measure becomes a target, it ceases to be a good measure

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Hanlon’s razor

Never attribute to malice that which is adequately explained by stupidity.

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Jevons paradox

In economics, the Jevons paradox (/ˈdʒɛvənz/; sometimes Jevons effect) occurs when technological progress increases the efficiency with which a resource is used (reducing the amount necessary for any one use), but the falling cost of use induces increases in demand enough that resource use is increased, rather than reduced.[1][2][3] Governments typically assume that efficiency gains will lower resource consumption, ignoring the possibility of the paradox arising.[4]

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Wirth’s law

Wirth’s law is an adage on computer performance which states that software is getting slower more rapidly than hardware is becoming faster.

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Parkinson’s_law

  • If you wait until the last minute, it only takes a minute to do.
  • Work contracts to fit in the time we give it.
  • Data expands to fill the space available for storage.

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Oscar Wilde on bureaucracy

The bureaucracy is expanding to meet the needs of the expanding bureaucracy.

Cheops law

Nothing ever gets built on schedule or within budget.

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Conquest’s three laws of politics

  • First law: Everyone is conservative about what he knows best
  • Second law: Any organization not explicitly right-wing sooner or later becomes left-wing.
  • Third law: The simplest way to explain the behavior of any bureaucratic organization is to assume that it is controlled by a cabal of its enemies.

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Conway’s law

Any piece of software reflects the organizational structure that produced it. Named after Melvin Conway.

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Cunningham’s law

The best way to get the right answer on the Internet is not to ask a question, but to post the wrong answer.

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Dilbert principle

The most ineffective workers are systematically moved to the place where they can do the least damage: management.

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Doctorow’s law

Anytime someone puts a lock on something you own, against your wishes, and doesn’t give you the key, they’re not doing it for your benefit.

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Dunning–Kruger effect

… is a cognitive bias in which people who are unskilled in some area wrongly believe their ability is higher than average; they don’t know enough about the subject to accurately measure their aptitude. People with well-above-average skills are acutely aware of how much they don’t know of the subject, but less aware of the general ineptitude of others, so tend to underestimate their relative ability.

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Gell-Mann amnesia effect

Believing newspaper articles outside one’s area of expertise, even after acknowledging that neighboring articles in one’s area of expertise are completely wrong.

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Gibson’s law

For every PhD there is an equal and opposite PhD.

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Godwin’s law, an adage in Internet culture

As an online discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches one." Coined by Mike Godwin in 1990.

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Gresham’s law

Bad money drives good money out of circulation", but more accurately “Bad money drives good money out of circulation if their exchange rate is set by law.

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Hebb’s law

Neurons that fire together wire together.

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Hofstadter’s law

It always takes longer than you expect, even when you take into account Hofstadter’s law

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Joy’s law in management

no matter who you are, most of the smartest people work for someone else

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Lem’s Law

No one reads; if someone does read, he doesn’t understand, if he understands, he immediately forgets.

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Linus’s law

Given enough eyeballs, all bugs are shallow.

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Murphy’s law

Anything that can go wrong will go wrong.

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Occams’s razor

  • explanations should never multiply causes without necessity. (“Entia non sunt multiplicanda praeter necessitatem.”)
  • When two or more explanations are offered for a phenomenon, the simplest full explanation is preferable. Named after William of Ockham (c. 1285–1349).

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Okun’s law, in economics

when unemployment increases by 1%, the annual GDP decreases by 2%.

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Peltzman effect

Safety measures are offset by increased risk-taking.

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Peter principle

In a hierarchy, every employee tends to rise to his level of incompetence.

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Schneier’s law

Anyone can create a cryptographic algorithm that he himself can’t break. It’s not even hard. What is hard is creating an algorithm that no one else can break.

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Segal’s law

A man with a watch knows what time it is. A man with two watches is never sure.

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Shermer’s last law

Any sufficiently advanced extraterrestrial intelligence is indistinguishable from God

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Shirky principle

Institutions will try to preserve the problem to which they are the solution.

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Sowa’s law of standards

Whenever a major organization develops a new system as an official standard for X, the primary result is the widespread adoption of some simpler system as a de facto standard for X.

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Streisand effect

whereby an attempt to hide, remove, or censor a piece of information has the unintended consequence of publicizing the information more widely.

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Vierordt’s law

… states that, retrospectively, “short” intervals of time tend to be overestimated, and “long” intervals of time tend to be underestimated.

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Zawinski’s law

Every program attempts to expand until it can read mail. Those programs which cannot expand are replaced by ones which can.

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