Eponymous Laws

7-38-55 Rule

"7 percent of a message is based on the words while 38 percent comes from the tone of voice and 55 percent from the speaker’s body language and face."

Betteridge's Law of Headlines

"If a headline ending with a question mark is answered by the word no.

Black Swan Rule

"Don’t treat others the way you want to be treated; treat them the way they need to be treated."

Brandolini's Law

"The amount of energy needed to refute bullshit is an order of magnitude larger than to produce it

Tags: bullshit

Brook's Law

"Adding manpower to a late software project makes it later."

Source: The Mythical Man-Month

Cheerleader Effect

put a bunch of things in a group, and we don't analyze them individually, we analyze the group "OMG THEY ARE ALL SO PRETTY". separate them, and the story is different "Uhh.. I see nothing special here"

Source: Ryan Maynard

Cobra Effect

The cobra effect occurs when incentives designed to solve a problem end up rewarding people for making it worse. The term is used to illustrate how incorrect stimulation in economics and politics can cause unintended consequences. It is also known as the perverse incentive.

Wikipedia Link

Conway's Law

"Any organization that designs a system will produce a design whose structure is a copy of the organization's communication structure."

Gall's Law

"A complex system that works is invariably found to have evolved from a simple system that worked. A complex system designed from scratch never works and cannot be patched up to make it work. You have to start over with a working simple system."

Goodhart's Law

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

Hawthorne Effect

"People's behavior changes when they are being observed."

"I Am Normal" Paradox

"our hypothesis that the world should look to others as it looks to us. After all, who wouldn’t make that assumption?"

  • Never Split The Difference

Lindy Effect

"The longer ideas, books, technologies, procedures, institutions, political systems has survived, the more anti-fragile they are. The only effective judge of these is time." lindy

Miller's Law

"The number of objects an average human can hold in short-term memory is 7 ± 2"

Parkinson's Law

"work expands so as to fill the time available for its completion". Same Parkinson as "Parkinson's Law of Triviality" parkinsons law

Parkinson' Law of Triviality

"people within an organization commonly or typically give disproportionate weight to trivial issues."

Parkinson provides the example of a fictional committee whose job was to approve the plans for a nuclear power plant spending the majority of its time on discussions about relatively minor but easy-to-grasp issues, such as what materials to use for the staff bike shed, while neglecting the proposed design of the plant itself, which is far more important and a far more difficult and complex task. AKA bicycle-shed effect, bike-shed effect, and bike-shedding

Wikipeida Link

Peter Principle

"In a hierarchy, every employee tends to rise to their level of incompetence. Thus, in time, every post tends to be occupied by an employee who is incompetent to carry out its duties."

Pinocchio Effect

"On average, liars use more words than truth tellers and use far more third-person pronouns. They start talking about him, her, it, one, they, and their rather than I, in order to put some distance between themselves and the lie."

Similarity Principle

"We trust people more when we view them as being similar or familiar."

Sturgeon's Law

"90% of everything is crap."

Zeigarnik Effect

"People remember unfinished or interrupted tasks better than completed tasks." zeigarnik Effect

Zone of Indifference Problem

"Decisions between options with a high variance in quality is easy. Decisions get harder as the options get closer, but if they are close enough then the decision doesn't matter."