💬 Ideas that taught me something

Luck Surface Area

The amount of serendipity that will occur in your life, your Luck Surface Area, is directly proportional to the degree to which you do something you're passionate about combined with the total number of people to whom this is effectively communicated.

Credit: https://www.codusoperandi.com/posts/increasing-your-luck-surface-area

Pareto's Principle

The Pareto principle states that for many outcomes roughly 80% of consequences come from 20% of the causes

Metcalf's Law

Metcalfe's law states the effect of a network is proportional to the square of the number of connected users of the system (n2)

Dunbar's number

Dunbar's number is a suggested cognitive limit to the number of people with whom one can maintain stable social relationships—relationships in which an individual knows who each person is and how each person relates to every other person

Pavlovian Conditioning

Pavlov’s theory, also called classical conditioning, refers to learning that associates an unconditioned stimulus that already results in a response (such as a reflex) with a new, conditioned stimulus. As a result, the new stimulus brings about the same response.

Associating an unconditioned stimulus with a new conditioned one, to generate the same response.

To test his theory that the dogs were salivating because they were associating the people with being fed, he began ringing a bell and then presenting the food so they’d associate the sound with food.

These dogs learned to associate the bell ringing with food, causing their mouths to salivate whenever the bell rang — not just when they encountered the food.

Asymmetric Bet

An asymmetric bet, trade, or investment is when the potential upside of a position is much greater than its potential downside.

Russel Conjugation

Mimics the form of a grammatical conjugation of an irregular verb to illustrate humans' tendency to describe their own behavior more charitably than the behavior of others.

I have reconsidered the matter, you have changed your mind, he has gone back on his word.

Linguistic trick to embed a hierarchy in the conversation.

Genchi Genbutsu

Genchi Genbutsu (現地現物) literally translates "real location, real thing" (meaning "the situation onsite") and it is a key principle of the Toyota Production System.

The principle colloquially translated to: "Go and see for yourself".

It suggests that in order to truly understand a situation one needs to observe what is happening at the site where work actually takes place.

Base your business on deep, first hand knowledge.


Chindōgu (珍道具) is the practice of inventing ingenious everyday gadgets that seem to be ideal solutions to particular problems, but which may cause more problems than they solve.

Sheepskin Effect

The sheepskin effect is this notion where completing the last year of highschool or college is disproportionately more valuable than completing the first three.

The sheepskin effect is that completing the last year of high school, college or graduate school is much more profitable than completing any of the previous years, rivaling those other years combined. Employers seem to be paying for the degree (aka the sheepskin, which it’s printed on) rather than the human capital being built over time.

Hedonic Threadmill

The more money you make, the higher you status rises, the more you push away your goals, which results in no permanent gain in happiness.

The flip-side to this is that a person's long-term happiness is not significantly affected by otherwise impacting events.

Marginal Thinking

Thinking in terms of a little bit more, or a little bit less

Thinking for example of the costs versus the benefits of a marginal piece of pie. What's the benefit of one more piece of pie?

Software has close to 0 marginal cost of reproduction. It costs the same to deploy an app to a thousand as it does to a million.

Movies are the same - you produce them once, then you can replicate them at close to zero cost.

In fact, media and software are the main groups that follow this behavior.

Elephant and the rider

Our mind can be divided into the controlled and automatic systems.

The automatic system has its finger on the dopamine release button. The controlled system, in contrast, is better seen as an advisor.

It’s a rider placed on the elephant’s back to help the elephant make better choices.

The rider can see farther into the future, and the rider can learn valuable information by talking to other riders or by reading maps, but the rider cannot order the elephant around against its will.

An emotionally intelligent person has a skilled rider who knows how to distract and coax the elephant without having to engage in a direct contest of wills.


Transhumanism is a philosophical movement, the proponents of which advocate and predict the enhancement of the human condition by developing and making widely available sophisticated technologies able to greatly enhance longevity, mood and cognitive abilities.

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